1 / 17

Florida Department of Law Enforcement

Florida Department of Law Enforcement. C rime L aboratory S ervices. Florida Department of Law Enforcement. C rime L aboratory S ervices. Pensacola Tallahassee Jacksonville Tampa Bay. Orlando Daytona Beach Ft. Myers. C rime L aboratory S ervices.

brier
Download Presentation

Florida Department of Law Enforcement

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Florida Department of Law Enforcement CrimeLaboratoryServices

  2. Florida Department of Law Enforcement Crime Laboratory Services Pensacola Tallahassee Jacksonville Tampa Bay Orlando Daytona Beach Ft. Myers

  3. Crime Laboratory Services • Statewide Crime Laboratory System accredited by ASCLD/LAB • Provide timely, expert, and professional examination of evidentiary materials to aid investigation and prosecution • Available to all local, state and federal criminal justice agencies in Florida Latent Prints/AFIS Microanalysis Biology/DNA Toxicology  Chemistry Digital Evidence Crime Scene Processing DNA Database Firearms Florida Department of Law Enforcement – November 2006

  4. Biology Jacksonville Pensacola Orlando Tallahassee Tampa Bay • Identifies biological material Jacksonville Pensacola DNA Orlando Tallahassee Tampa Bay • Performs genetic testing on evidence left at crime scenes including: murder, aggravated battery, sexual assault, hit and run, burglary • Biological Material Suitable for DNA includes: -Saliva -Hair -Blood -Semen Florida Department of Law Enforcement – November 2006

  5. Biology Jacksonville Pensacola Orlando Tallahassee Tampa Bay Genetic Profile Jacksonville Pensacola DNA Orlando Tallahassee Tampa Bay • Sex marker and 13 other markers • Identified using Short Tandem Repeats (STR) • Compare questioned stain profiles to suspect profiles • If a match is obtained, calculate statistical probability • Statistical probabilities can range from 1 in tens of millions to 1 in quintillions (1 in 1,000,000,000,000,000) Florida Department of Law Enforcement – November 2006

  6. Biology Jacksonville Pensacola Orlando Tallahassee Tampa Bay Jacksonville Pensacola DNA Orlando Tallahassee Tampa Bay Convicted Offender Database –Profiles from unsolved cases are searched against offender samples for possible match • Established in 1989 • Housed in Tallahassee • Contains DNA profiles of offenders convicted of offenses specified in Florida Statute 943.325 • Contains more that 330,000 profiles • Expanded in July 2006 to include DNA samples from all violent felons Florida Department of Law Enforcement – November 2006

  7. Jacksonville Pensacola Orlando/Daytona Tallahassee • Identified Controlled Substance covered under F.S. 893 and F.S. 877 • Identifies samples from clandestine laboratories including methamphetamine laboratories. Tampa Bay Ft. Myers Jacksonville Chemistry Pensacola Orlando/Daytona Tallahassee Tampa Bay Ft. Myers • Uses many methods to identify drugs including: • - Color Tests • - Microscopic examination • - Gas Chromatography • - Mass Spectrometry • - Ultraviolet Visible Spectrophotometry • - Fourier Transform Infrared Spectroscopy Florida Department of Law Enforcement – November 2006

  8. Jacksonville Pensacola Tallahassee Tampa Bay • Responds to requests by local law enforcement agencies for examination of major crime scenes Ft. Myers Jacksonville CrimeScene Pensacola Orlando/Daytona Tallahassee Tampa Bay Ft. Myers • Uses specialized equipment to sequentially record and document the evidence and their observations at the crime scene • Provide training to local law enforcement agencies covering the overall functions of the crime laboratory and the proper procedures for documenting, preserving, collecting and submitting of physical evidence to the laboratory Florida Department of Law Enforcement – November 2006

  9. Digital Tallahassee Tampa Bay Types of computer equipment and media examined include: Evidence Tallahassee Tampa Bay • Personal computers • Various network systems • Personal digital assistants (PDA’s) • Various floppy and removable disks, tapes, digital cameras • Other data storage media • Cellular phones Evidence recovery may include: • Recovering passwords • Circumventing schemes designed to prevent access • Retrieving and preserving information • Recovering information that has been deleted, hidden or encrypted Florida Department of Law Enforcement – November 2006

  10. Firearms Jacksonville Tallahassee Orlando Tampa Bay • Examine firearms for function and safety Jacksonville Toolmarks Orlando Tallahassee Tampa Bay • Compare fired bullets, cartridge cases and shot shells with tests to determine if they were fired in the suspect weapon or determine possible make and type of weapon involved • Examine exhibits for the presence of gunpowder patterns and shot pellet spread to determine firing distance • Examines tool marks to see if they can identify the tool that made them Florida Department of Law Enforcement – November 2006

  11. Jacksonville Pensacola Tallahassee Tampa Bay Ft. Myers • Uses various methods to find latent fingerprints including: Jacksonville LatentPrints Pensacola Orlando/Daytona Tallahassee Identification & Comparison Tampa Bay Ft. Myers - powder processing - chemical processing - super glue - alternate light sources • Compares latent fingerprints found on evidence to known prints • Compares palm prints and foot prints by these same methods Florida Department of Law Enforcement – November 2006

  12. Jacksonville Pensacola Orlando Tallahassee Tampa Bay Ft. Myers • Footwear impressions can be as individual as a fingerprint Jacksonville LatentPrints Pensacola Orlando Tallahassee Footwear & Tire Impressions(TROC, JROC, OROC, TBROC Only) Tampa Bay Ft. Myers • Tires undergo a unique transformations as they wear down   • Accidental scratches, nicks, and cuts are left on the tires which also may be unique • Questioned impressions from crime scenes can be photographed, lifted, or cast with dental stone to compare to suspect shoes or tires • Comparison of tread designs, wear patterns and unique characteristics can lead to a positive identification Florida Department of Law Enforcement – November 2006

  13. Jacksonville Pensacola Tallahassee Tampa Bay Ft. Myers Computerized system capable of reading, classifying, matching and storing fingerprints  Jacksonville AFIS Pensacola Orlando/Daytona Tallahassee (Automated Fingerprint Identification System) Tampa Bay Ft. Myers • Quality latent fingerprints are entered into the AFIS • Searched against all fingerprint records in the state • Possible hits are determined by the computer and verified by a Latent Print examiner • If no hit is made against the Florida Database, the print can be searched nationally using IAFIS Florida Department of Law Enforcement – November 2006

  14. Microanalysis Examines trace evidence that is sometimes no larger than the numbers in a date on a penny Orlando Glass, Fracture Match, Bulb Filaments Tampa Bay • Evidence can associate a person with a place or another person • Comparisons may include: - Glass from a suspects clothes, compared with broken glass from the crime scene • - Cut, broken or torn objects to determine if they were at one time part of the same object • - Light bulb filaments from a car in a hit and run can be examined to determine if the lights were on at the time of the accident Florida Department of Law Enforcement – November 2006

  15. Paint found on the clothing of a hit and run can be compared to a suspects vehicle OR analyzed to determine makes/models of suspect cars • Fibers can be transferred between the clothing of two individuals involved in a crime. Microanalysis Orlando Paint, Polymer, and Fibers Tampa Bay • Fibers are compared against standards from clothes for possible match Florida Department of Law Enforcement – November 2006

  16. Orlando Tallahassee Analyzes samples of blood and urine in order to detect alcohol and other impairing drugs or chemicals Toxicology Orlando Tallahassee • Analyzes cases involving suspected drug facilitated sexual assault (DFSA) • The majority of case submissions to the Toxicology section are DUI cases • In Florida, blood alcohol concentration of 0.08 percent or higher is considered presumptive for impaired driving • Toxicologists can do “back extrapolations” to determine a person’s alcohol level at the time of the offense • In DUI cases, blood and urine samples may also be analyzed for the presence of Controlled Substances Florida Department of Law Enforcement – November 2006

  17. Florida Department of Law Enforcement

More Related