DNA Evidence

DNA (Deoxyribonucleic Acid) is found within all cells, apart from red blood cells, and is therefore invaluable in criminal investigations, being found in various body fluids such as blood, saliva, semen and vaginal secretions, as well as in hair roots.

Once a sample is received at a laboratory, it can be analysed by different techniques, such as the standard SGM+ (Second Generation Multiplex Plus) system or the sensitive LCN (Low Copy Number) system.

A full female DNA profile ►

DNA Comparisons

The resultant DNA profile can then be compared with a reference DNA profile from the Suspect, in order to ascertain whether that person may or may not have contributed DNA to the profile found.

If DNA components are found in common, a statistical probability of the DNA having originated from someone else is usually produced. This is often seen in statements as follows:

Our Experts are able to:

►  Carry out DNA comparisons and interpret DNA results, including DNA mixtures and statistics;

►  Comment on possible methods of indirect DNA deposition;

►  Compare the findings with alleged events;

►  Conduct body fluid identification;

►  Examine secondary transfer mechanisms and possible causes of contamination;

►  Examine the continuity and handling of exhibits;

►  Interpret LCN results;

►  Produce detailed Expert reports, in S9 format;

►  Provide advice at Court to Barristers and Solicitors;

►  Provide Expert testimony at Court.

Please contact us should you wish to discuss a specific case , or go to our Quotes page to find out what information we need in order to provide you with a quote.