Expert pressed on 'zero' DNA sample at Massereene shootings trial

Traces of DNA linking a man to the murders of two British soldiers are at most 100 billion times smaller than a gram, a court has heard.

Genetic data recovered from a getaway car used in the gun attack on Mark Quinsey and Patrick Azimkar that implicate Brian Shivers are classified as “low template” DNA such is their size, a forensic scientist told Antrim Crown Court.