Michele Triplett's Fingerprint Terms ©
A collection of over 800 terms used in the Science of Fingerprint Identification.

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The Spa Murders © (State of Florida v. Stephen William Beattie (1978))
The spa murders occurred on July 23, 1978 in North Miami Beach, Florida.  This 
case was the first case on record where a latent fingerprint developed from a 
homicide victim's skin was identified with an offender and introduced as evidence 
in court. 

Three victims (1 male and 2 females) were found shot to death in the World of 
Health Spas.  One of the victims, a young female, was found nude, posed and her 
clothing strewn about.  It appeared as though she may have been sexually assaulted.  
She was processed for latent print evidence with black magnetic powder and three 
prints were developed on the left ankle area.  One of the prints was determined to 
be identifiable and was identified to the subject.  The other two victims were also 
processed for latent print evidence with KromeKote ® cards, yielding negative results.

There are many misconceptions connected with this case, which have perpetuated over 
the years, resulting in urban legend.  One is that the print was deposited on the 
surface of the victim's skin with sun tan lotion or oil.  This is unsubstantiated 
and unfounded but has contributed to over embellished statements that all prints 
recovered from human skin have been in the state of Florida and are due to sun 
tan oil. 

The causative factor of the print is irrelevant and was definitely not sun tan oil.  
The fact was that a latent print was developed and recovered from the surface of the 
skin of a murder victim and was subsequently accepted in court as evidence.

On January 31, 1979, Stephen William Beattie was found guilty of three counts of 1st 
degree murder.  On February 1, 1979 he was sentenced to three consecutive death 
sentences.  Beattie committed suicide within three years of his sentence in prison 
while awaiting execution.  He maintained his innocence even to the end.
By William C. Sampson and Karen L. Sampson

Sparks from the Anvil
Sparks from the Anvil was the second periodical of the IAI and was 
published from 1933-1937.

Specific Pattern
Pattern or path of the friction ridges used during identification; 
second level detail.
Quantitative-Qualitative Friction Ridge Analysis, David R. Ashbaugh 1999 CRC Press

Spinous Layer of Epidermis
See Stratum Spinosum.

Split Thumb
Thumb that has conjoined distal phalanges.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf

Sprue Marks
Marks that are made when casting metals or plastics.  These marks can resemble 
friction ridge detail by replication ridges with bifurcations and ending ridges.  
These marks typically appear with a wavy motion and have no signs of pores or 
ridge edges.  These marks have been called extrusion marks and/or false ridge 
detail.

Spur
A bifurcation with one short ridge branching off a longer ridge.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf

Squamous
Resembling a scale or scales; thin and flat like a scale.
The American Heritage ® Dictionary of the English Language, Fourth Edition
Copyright © 2000 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
http://dictionary.reference.com/search?q=squamous

Stand-alone
A segment of a simultaneous impression that has sufficient value to arrive at a 
conclusion of identity directly from the information within this segment. 

Starburst  
A term popularized by Ron Smith to describe the crease pattern in the top radial 
side of the thenar.  These creases originate from the same area and then explode 
in different directions.

Starrs, Dr. James
A fingerprint critic. A professor of law and forensic science at 
George Washington University.  Predicted the fall of fingerprints 
in 1996.

State of Florida v. Stephen William Beattie (1978)
The first case on record where a latent print was developed on a homicide victim's 
skin, identified to a suspect, and introduced as evidence in court.

See The Spa Murders ©.

State of Florida v. Victor Reyes (2003)
This was the 4th trial in the United States that considered the evidentiary value 
of computer enhancement with regard to latent evidence. In 1996, Victor Reyes was 
charged with a Broward County murder.  Originally latent prints on some tape were 
analyzed as having no value, but in 1999 the latent images were reanalyzed by 
forensic analyst David Knoerlein using a computer enhancement technique known as 
‘dodge and burn’, and identified as prints left by Victor Reyes.  The State of 
Florida found that computer enhanced images did meet the Frye test and the latents 
were admitted as evidence in the trial.  Reyes was acquitted at trial.  The jury 
felt that the latent prints didn’t prove that Reyes committed the murder.  The 
significance of this case was that defense attorneys realized the importance of 
challenging digitally generated evidence.

State of Illinois v. Jennings (1910)
Aka People v. Jennings.  
See Jennings.  See Jennings, Thomas.

State of Maryland v. Bryan Rose (2007)
The second case to fail a fingerprint Challenge based on the reliability of the conclusion.  
Bryan Rose was the suspect in a homicide case.  Stephan Meagher testified for the 
prosecution and Ralph Haber testified for the defense.  On Oct 19, 2007, Judge Souder 
published her decision, “…In conclusion, the proof presented by the State in this case 
regarding the ACE-V methodology of latent fingerprint identification showed that it was 
more likely so, than not so, that ACE-V was the type of procedure Frye was intended to 
banish, that is, a subjective, untested, unverifiable identification procedure that purports 
to be infallible.  After impartial scientific testing, the establishment of an error rate and 
of objective criteria which when applied, are documented and can be verified, it may 
be that latent print identification opinion testimony as offered in this capital case will 
qualify for admission under Frye-Reed.  The State did not meet that burden in this case 
and, consequently, shall not offer testimony that any latent fingerprint in this case is 
that of the Defendant.  In this case, the State did not show by a preponderance of 
evidence that a fingerprint examiner can reliably identify a fingerprint to an individual 
to the exclusion of all others using the ACE-V method.”

The references in this decision make it appear that this decision was based on the 
FBI procedures prior to the Mayfield case and not from the procedures that were 
used in this case.  Most of the references were from the Office of the Inspector 
General Review of the Mayfield case.

In Oct. 2007, the prosecution filed a motion for reconsideration and it was denied 
on Feb. 21, 2008.  On April 1, 2008, a federal grand jury indicted Rose on murder 
charges hoping that this will allow the fingerprint evidence into a trial.

State of Massachusetts v. Patterson (2005)
In 1995 Terry Patterson was found guilty of a 1993 armed robbery and the 1993 homicide 
of Det. John Milligan.  In 2000, based on inefficient counsel, Patterson won an appeal to 
have new trail.  Prior to the new trial, the defense asked for a Daubert Hearing regarding 
the use of simultaneous impression.
On Dec. 27, 2005, in Commonwealth (of Massachusetts) v. Terry L. Patterson, the 
Massachusetts Supreme Judicial Court determined “Consistent with the decisions of 
other courts that have considered the issue since Daubert, we conclude that the 
underlying theory and process of latent fingerprint identification, and the ACE-V 
method in particular, are sufficiently reliable to admit expert opinion testimony 
regarding the matching of a latent impression with a full fingerprint. In this case, 
however, the Commonwealth needed to establish more than the general reliability of 
latent fingerprint identification. It needed to establish that the theory, process, and 
method of latent fingerprint identification could be applied reliably to simultaneous 
impressions not capable of being individually matched to any of the fingers that 
supposedly made them. On the record before the judge below, the Commonwealth 
failed to meet its burden.”
The prosecution offered Patterson a plea agreement of pleading guilty to a lesser 
charge with time served instead of risking a new trial and the potential longer 
sentence.  Patterson took the plea agreement. 

State of Michigan v. Les (1934)
In People v. Les, (255 NW 407) the defendant's palm print was recovered from the 
windowsill at the point of entry of a breaking and entering scene. Before trial, 
the defendant contended that palm prints were not sufficient to sustain a 
conviction. The court ruled that the evidence was insufficient to hold the defendant 
for trial, quashed the information, and ordered the discharge of the defendant. The 
Government appealed that the trial court was in error in their ruling regarding the 
palm print evidence, and the Supreme Court of Michigan (1934) agreed that finger-
prints and palm prints are both "considered physical characteristics" and therefore 
were "sufficient evidence to go to trial." The trial judge was directed to reinstate 
the information.
http://www.clpex.com/Articles/TheDetail/TheDetail82.htm 10-20-2004

State of Nevada v. Kuhl (1918)
State vs. Kuhl was a significant court case regarding palm prints identifications.  
This case was an appeal for a conviction of a 1916 murder.  It looked at 1) Was 
the court in error in allowing experts in fingerprint identification to testify 
as experts in palm print identification, 2) Was the court in error in admitting 
photographic enlargements of palm prints, 3) Was the court in error in allowing 
the use of a projectoscope, 4) Was the court in error in admitting photographs 
of palm prints where the experts drew lines upon them, and 5) Was the court in 
error in permitting the expert witness to make a positive statement as to the 
identity of the palm impressions. The Supreme Court of Nevada (1918) held "NO" 
on all counts.
http://www.clpex.com/Articles/TheDetail/1-99/TheDetail82.htm

State of New Hampshire v. Richard Langill (2007)
The first case to fail a Daubert Challenge based on the reliability of the conclusion.  
Richard Langill was suspected of burglary.  Lisa Corson was the examiner in this 
case and Prof. James Starrs testified for the defense.  The court determined, “Ms. 
Corson is qualified through training, experience, and proficiency testing to provide 
expert testimony at the defendant’s trial.  However, Ms. Corson’s proffered 
testimony is inadmissible under Rule 702 because her application of the ACE-V 
(Analysis, Comparison, Evaluation, and Verification) methodology to the single 
latent print in this case was unreliable as a result of incomplete documentation 
and possibly biased verification.”  On Jan.19, 2007, Judge Coffey granted a motion 
to exclude the fingerprint evidence.  Documentation was required in the NHDSFL 
Standard Operating Procedures but wasn’t done in this case.  The comment about 
‘possibly biased verification’ was determined because blind verification wasn’t 
done. Blind verification has become a policy of the FBI since the Mayfield mis-
identification.  Ms. Corson also testified in this case that Blind Verification was 
ideal but not practical.

A motion to reconsider was entered and on April 11, 2007 Judge Coffey ruled that 
there was “insufficient information to support a finding that the application of the 
ACE-V methodology to the single latent print in this case was reliable.” Judge 
Coffey affirmed her original decision.  

On Feb 13, 2008, this was argued before the New Hampshire Supreme Court.  
On April 4, 2008, the court issued its opinion to reverse and remand.

State of New York v. Crispi (1911)
Aka People v. Crispi.  Charles Crispi, aka Cesare J. Cella, was the defendant in 
this case, which is noted as being the first case that fingerprint evidence was 
the sole evidence.  Fingerprint expert Joseph Faurot testified to the identification 
process.  After hearing Faurot’s testimony, Crispi pled guilty.  The judge asked 
Crispi for a full confession, insuring him that no additional charges would be filed.  
The judge wanted to insure that the scientific evidence that was testified to was 
indeed correct.

State of New York v. Kent (1968)
Aka People v. Kent.  Perhaps the first trial that a defense expert testified that 
although the identification had 12 (some articles say 14) points of similarity, the 
prints were not identical.  Richard Stanley Kent was charged with murdering Joseph 
Murphy, a retired New York City Policeman.  The key evidence against Kent, a latent 
print on a bed board, seemed to be irrefutable.  William J. Ciolko, Dutchess County 
Public Defender, hired Dr. Vassilis C. Morfopoulos, director of the American Standards 
Testing Bureau, to look at the identification.  Dr. Morfopoulos analyzed the 
identification using a 25x microscope.  He testified that he found 3 differences, “One 
distinct and crucial difference destroys the validity of an identification”, he said.  
Richard Kent was found not guilty of the murder.  In 1970, the FBI and the IAI refuted 
Dr. Morfopoulos’s analysis and sided with Wilfred Holick, the original examiner in 
this case.  The defense attorney and the defense expert gave a presentation of this 
case at the 55th IAI Conference.  
There were two significant points to this case.  This was the first time ‘the prints 
are not identical’ was used in court as a defense strategy, and the defense claimed that 
this case broke down the apparent ironclad status of fingerprints.

State of Ohio v. Betts (1917)
The Betts case may have been the first conviction based solely on palm print evidence.  
In 1917, Samual W. Betts was arrested and charged with burglary based on the fact that 
his palm print was found on a windowpane.  George Koestle (one of Ferrier’s students) 
was the person who took and compared the palm prints.
‘Fingerprint and Identification Magazine’, Dec 1942.

Another palm print case that happened around the same time, and also said to be the 
first palm print case to have a conviction, was a murder trial in Nevada.  The defendant 
was Ben Kuhl.

State of Ohio v. Hartman (1998)
The 3rd court case in the United States ruling on the computer enhancement of 
fingerprint images.  In 1997, Brett X. Hartman was charged with murdering Wanda 
Snipes by stabbing her 138 times, slitting her throat, and cutting off her hands.  
Due to numerous pieces of evidence, including latent print images on a chair and 
a bedspread, a jury found Hartman guilty of murder and kidnapping, sentenced him 
to death.  In 2001, Hartman appealed his conviction stating 13 different challenges.  
The challenges dealing with the latent prints were 1) the admission of digitally 
enhanced fingerprint evidence, their reliability and the qualifications of the 
state's fingerprint expert, Patrick Warrick, to testify regarding such evidence 
and 2) the court failed to make a threshold determination concerning Patrick 
Warrick's qualifications stating that "It was error for the trial court to admit 
the opinion of witnesses who had not first been qualified as an expert".  The 
court ruled that "the use of the computer in this instance is no different than 
*** would be the use of an overhead projector, microscope, a magnifying glass or 
anything else like that that would enhance an experts ability to make his 
determination...".  It was ruled that since Warrick had used computer enhancement 
for approx. a year and a half this was not blazing new ground, Warrick's testimony 
was appropriate.  The court also determined that although Warrick was not formally 
tendered as an expert witness, the defense did not challenge Warrick's qualifications 
and the court determined him to be qualified to identify defendants fingerprint on 
Snipes's bedspread.  On Oct. 3, 2001, the appellate court affirmed Hartman's conviction. 
http://caselaw.lp.findlaw.com/scripts/getcase.pl?court=oh&vol=981475&invol=1  08-02-2004

State of Virginia v. Robert Douglas Knight (1991)
The first (case to establish a precedence for the acceptance of digitally enhanced 
evidence in American criminal proceedings) is Commonwealth of Virginia vs. Robert 
Douglas Knight. This 1991 murder case (murder was March of 1990, trial was in 1991) 
involved the enhancement of a bloody fingerprint found on a pillowcase at the crime 
scene. A company called Hunter Graphics (no longer in business) was contacted by the 
Henrico County Police Department to assist in the enhancement process. Experts from 
Hunter Graphics used a frequency filter known commonly as a Fast Fourier Transform 
(FFT) to subtract the fabric pattern that interfered with the identification of the 
fingerprint. The fingerprint was subsequently identified as belonging to Robert Knight. 
After being charged with the crime, Knight’s attorney moved for a Kelly-Frye Hearing 
to determine the scientific validity and acceptance of the enhancement process. The 
determination of the court was that the techniques used were essentially photographic 
processes. Robert Knight plead guilty and was sentenced to four life terms.
http://www.more-hits.com/forensics/dl/AboutForensicDigitalImaging.pdf  01-25-2005

State of Washington v. Eric Hayden (1998)
The 2nd court case in the United States ruling on the computer enhancement of 
fingerprint images.  In 1995, Eric Hayden was charged with murdering a 27-year-
old female.  Her body was found with a bloody sheet wrapped around her head and 
neck.  The examiner in this case, Dan Holshue, found latent prints on the sheet 
but they were too subtle to identify.  Erik Berg, an expert in enhanced digital 
imaging, used enhancement techniques to filter out the background pattern and 
colors of the sheet.  After enhancement, the latent prints were identified and 
Eric Hayden was found guilty of murder.  His murder conviction was upheld on 
appeal and the court concluded that computer enhancement did meet the Frye 
test, setting new case law in this field.

Statistical Analysis of Error Rates
See Error Rate Studies.

Statistical Models on Fingerprint Individuality, etc.
Galton (1892)		
Henry (1900)		 	
Balthazard (1911)	
Bose (1917)		
Wentworth / Wilder (1918)      
Pearson (1930)
Roxburgh (1933)		
Cummins / Midlo (1943)	 	
Amy (1946-48)	
Trauring (1963)		
Kingston / Kirk (1964)	 	
Gupta (1968)
Osterburg (1977-80)	
Stoney (1985)		 	
Champod (1995-96)
FBI / Lockheed-Martin 50k x 50k study (1999)  
Pankanti / Prabhakar / Jain (2001)
Neumann / Champod Liklihood Ratios (2007) (see PBFE)

Steegers, Juan (AKA Steegers y Pereira or Steegers y Perera)(1856-1921)
Juan Steegers was a cuban civil servant honored by his government as a 
fingerprint pioneer.
"Fingerprint Techniques" Andre A. Moenssens, 1971 pg 26.

Sticky Side Powder ™
Product used to develop friction ridge detail on adhesive surfaces 
and/or tapes.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf

Stimac, Jon T. (1966-present)
Jon Stimac began his career in forensics after earning a Bachelor of Science 
Degree in Criminalistics/Criminal Justice from Weber State University in Ogden, 
Utah.  Immediately after graduation, he began employment with Salt Lake City 
Police Department's Crime Laboratory. 

In 1996, Jon left Salt Lake City to continue his career with the Oregon State 
Police Forensic Services Division.  Since then, he has acted as a latent print 
examiner, temporary lab director, forensic scientist, and as the technical 
leader for the latent print discipline.

Jon supplemented early research on the 3M® solvent HFE-7100 and introduced 
to the forensic community the use of Un-du® as an alternative adhesive separator.  
For the development of latent print impressions on specialty papers (thermal and 
carbonless), he introduced a specialized ninhydrin formulation and the use of 
1,2-Indanedione. Jon has published several technical articles covering these 
and other topics within international forensic identification journals, including 
the Journal of Forensic Identification.  In addition, he has compiled and published 
a monthly newsletter on friction ridge individualization, FP Stuff, since 2001.  
In Feb. 2008, Jon Stimac became the editor of the IAI’s Identification News.

In 2000, Jon became a member of the FBI sponsored Scientific Working Group on 
Friction Skin Analysis, Study and Technology (SWGFAST).  He is also active within 
several regional and international forensic identification organizations.  

Stock Solution
Concentrated solution diluted to prepare a working solution.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf

Stoney, Dr. David
A mild fingerprint critic.  Directs the McCrone Research Institute in Chicago, 
PhD Forensic Science.  Noted as being the person to state that conclusions of 
absolute certainty are based on a leap of faith.

Strabismus
A journal edited by John Berry (Hertfordshire) from 1979 dealing with the 
appearance of the basic seven ridge characteristics occurring throughout 
nature, the total at the end of 2004 being 1,556.  Originally published 
under the title RIDGE DETAIL IN NATURE until 1998, this reference should 
be used for further information.

Stratify (Stratification)
Arranged in a sequence of grades or ranks.
WordNet ® 1.6, © 1997 Princeton University
http://dictionary.reference.com/search?q=stratified

Stratton Brothers (Alfred and Albert)
The Stratton brothers made legal history in May 1905 when fingerprint 
evidence was used against them in a British Court to convict them of 
murdering Thomas and Ann Furrow.  Dr. Henry Faulds sided with the 
defense in this case due to a bitter controversy over Faulds contribution 
to the science of fingerprints.

Stratum Basale (Basal Layer)
The inner layer of epidermis that contains melanocyte cells, Merkel cells and 
keratinocyte cells.  The layer of the epidermis where new keratinocytes are 
formed.  Known as the germinative or generating layer. 

See Stratum Germinativum.

Stratum corneum epidermidis, horny layer of epidermis: the 
outermost layer of the epidermis, consisting of cells that are dead 
and desquamating. 
Merck Source Health Library
http://www.mercksource.com/pp/us/cns/cns_health_library_frame.jspzQzpgzEz/pp/us/cns/cns_hl_dorlands.
jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_l_05zPzhtm

Stratum germinativum, stratum germinativum epidermidis 
[Malpighii], germinative layer: the stratum basale epidermidis and 
the stratum spinosum epidermidis considered as a single layer. The 
term is also sometimes used to designate only the stratum basale 
epidermidis. Called also germinative layer of epidermis, malpighian 
layer or rete, mucous layer, and s. malpighii.
Merck Source Health Library
http://www.mercksource.com/pp/us/cns/cns_health_library_frame.jspzQzpgzEz/pp/us/cns/cns_hl_dorlands.
jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_l_05zPzhtm

Stratum granulosum epidermidis, granular layer of epidermis: 
the layer of the epidermis between the stratum lucidum epidermidis and 
the stratum spinosum epidermidis.
Merck Source Health Library
http://www.mercksource.com/pp/us/cns/cns_health_library_frame.jspzQzpgzEz/pp/us/cns/cns_hl_dorlands.
jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_l_05zPzhtm

Stratum lucidum epidermidis
Clear layer of epidermis: the clear translucent layer of the epidermis, just 
beneath the stratum corneum epidermidis. 
Merck Source Health Library http://www.mercksource.com/pp/us/cns/cns_health_library_frame.jspzQzpgzEz/pp/us/cns/cns_hl_dorlands.
jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_l_05zPzhtm

This layer of the epidermis is not always present.  It is prominent in very 
thick skin.  Also call the Hyalin layer of the epidermis.

This is an electronlucent skin layer between the stratum granulosum and 
stratum corneum in palmoplantar skin rather than what you have written.
Professor Julian Verbov 04-19-08

Stratum Malpighii
See Stratum Germinativum.

Stratum Mucosum
See Stratum Germinativum.

Stratum spinosum epidermidis, spinous layer of epidermis: 
the layer of the skin between the stratum granulosum epidermidis 
and the stratum basale epidermidis characterized by the presence 
of prickle cells. Called also prickle cell layer.
Merck Source Health Library
http://www.mercksource.com/pp/us/cns/cns_health_library_frame.jspzQzpgzEz/pp/us/cns/cns_hl_dorlands.
jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_l_05zPzhtm

Protein synthesis happens in this layer of the epidermis, 
producing keratin.

Subcutaneous
Beneath or introduced beneath the skin.
Quantitative-Qualitative Friction Ridge Analysis, David R. Ashbaugh 1999 CRC Press

Subjective
Proceeding from or taking place in a person's mind rather than the 
external world: a subjective decision 
The American Heritage ® Dictionary of the English Language, Fourth Edition
Copyright © 2000 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved
http://dictionary.reference.com/search?q=subjective 02-27-03

Influenced by a person's knowledge, state of mind, or ability.
Quantitative-Qualitative Friction Ridge Analysis, David R. Ashbaugh 1999 CRC Press

Subjective Probability 
The user defines the probability (the probability of getting an A).

See Classical Probability and Empirical Probability.

Sub-Secondary
An alpha expression derived from the index, middle and ring 
fingers of both hands.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf

Substrate
Surface upon which a friction ridge impression is deposited.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf

The surface upon which a latent fingerprint is deposited or placed.
Quantitative-Qualitative Friction Ridge Analysis, David R. Ashbaugh 1999 CRC Press

Sudan Black
Black dye that stains fats, oils, sebaceous components, and 
contaminants of friction ridge residue; can enhance cyanoacrylate 
fumed friction ridge detail.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf

A black dye used to visualize friction ridge detail.  Can be alone or 
in conjunction with the cyanoacrylate process.  Works best on waxy or 
greasy surfaces.

Sufficient
Enough or an adequate amount to be generally accepted by other experts.  
Besides being generally accepted, scientific conclusions usually require 
enough information or data to justify the conclusion and/or enough to test 
the conclusion.  Also enough data should be present to diminish doubt in the 
conclusion, enough so that the justification and the conclusion stands up to 
scrutiny, and enough so the conclusion will stand the test of time.
 
Sufficient Recurve
The space between the shoulders of a loop, free of any appendages 
that abut upon the recurve at a right angle on the outside.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf

Suicide Ridges  
A term popularized by Ron Smith to describe the ridge pattern on the 
underside of the distal transverse crease.  Many times these ridges are 
found to be a series of vertically terminating ridges.

Sulcus (plural: sulci)
A deep, narrow furrow or groove, as in an organ or tissue.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2000 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved
http://dictionary.reference.com/search?q=sulci

5-Sulfosalicylic Acid
Chemical used in fixative solutions for a variety of blood 
enhancement reagents.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf

Superglue
See Cyanoacrylate Ester.

SuperGlue Girl
For the 2006 California State Science Fair, 13 year old Avery L. Smith 
tried to add different coloring agents to superglue to enhance the 
visibility.  She found that the ink from a pink highlighter produced 
the best results.  Subsequent to the Science Fair, Miss Smith presented 
her conclusions at the 2007 IAI Conference in San Diego, California and 
became known as SuperGlue Girl.  Her research was subsequently 
published in Forensic Magazine and Jan 2007 issue of The Print.

See Colored Superglue.

Superior Region
One of the 3 main areas of the palm.  The area immediately below the fingers.  
In many countries this area is known as the interdigital area but in some 
countries, such as Portugal, this is called the superior region.

Surfactant
Surface-active substance; detergent.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf

Sweat Glands
Both the eccrine and the apocrine glands are considered as sweat glands, 
as opposed to the sebaceous gland which is an oil gland.

Symphalangy
End to end fusion of the phalanges of the fingers or toes.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf

Another opinion:  Synonymous with syndactyly and webbed fingers 
or toes.
The International Classification of Diseases, 9th edition, 
World Health Organization.  
http://www.nber.org/mortality/1995/docs/ch14.txt 06-18-2003

Syndactyly
Refers to webbed fingers.  Side-to-side fusion of digits.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf

Fusion of the fingers or toes.  This may occur with or without 
fusion of the bone.  Synonymous with symphalangy or webbed 
fingers or toes.
The International Classification of Diseases, 9th edition, 
World Health Organization.  
http://www.nber.org/mortality/1995/docs/ch14.txt 06-18-2003

Synperonic-N
Chemical used in the preparation of the detergent solution in 
Physical Developer.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0
http://www.swgfast.org/Glossary_Consolidated_ver_1.pdf



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Copyright © 2002-2008, Michele Triplett. All rights reserved.