Forensic Biology
A Forensic Biologist deals with many aspects of forensic evidence,
including:
- Blood Pattern Analysis / Blood Splatter / Spatter Evidence
- Body Fluid Identification
- DNA Evidence
- Fibre and Hair Evidence
- Weapons Damage to Clothing
BLOOD
can be deposited at a variety of crime scenes, such as assaults
and murders, at the scene itself, on clothing and foot wear. The
appearance of the blood can be examined, interpreted and the results
compared with alleged events in order to ascertain by what actions
the blood may have been deposited and whether the evidence supports
suggested scenarios.
We often find that the Scientists have only been provided with one alleged scenario. It is therefore crucial that the Defendant is afforded his/her own Expert, to ensure that any alternative propositions are considered.
DNA (Deoxyribonucleic Acid) is invaluable in criminal investigations,
being found in various
body fluids such as blood, saliva, semen and vaginal secretions,
as well as in hair roots.
There are many different DNA profiling techniques that can be employed, such as SGM+, Low Copy Number (LCN), Low Template DNA Profiling, Mitochondrial Sequencing and Y-STR Profiling.
Any resultant profile can then be compared with a reference DNA profile from an individual in order to determine whether or not that person may have contributed DNA to the profile found. A statistical probability of the DNA having originated from someone else is produced, and therefore the DNA is not said to have definitely come from a specific person.
Due to the small sample size that can produce a DNA profile various factors should be considered, particularly any risk of contamination or secondary (or even tertiary) transfer.
Our Experts are able to:
- Arrange the DNA testing of exhibits / samples
- Carry out DNA comparisons and interpret DNA profiling results, including DNA mixtures
- Comment on possible methods of indirect DNA deposition
- Examine and interpret blood distribution
- Examine fibre and hair evidence
- Examine damage to clothing caused by weapons
- Compare the evidence with different alleged scenarios
- Examine exhibit continuity and handling
- Examine secondary transfer and potential causes of contamination
- Produce detailed reports in S9 statement format
- Provide advice to Barristers and Solicitors
- Provide expert testimony at Court
If you require a quotation for a specific case please see our ‘Estimates’ page for all the information you need.
