R -v- David Francis Bieber

Trial for the murder of PC Ian Broadhurst and the attempted murder of PCs Neil Roper and James Banks |

We were engaged by the prosecution to compare the voice of the suspect placing bets with recordings from the scene of the shootings.  The report and witness testimony based on analysis of the voices contributed significantly to the conviction of David Bieber.
BBC news report on the speaker comparison evidence

Newcastle-Upon-Tyne Crown Court, November – December 2004.
Instructed by the Crown.  Produced report and gave evidence in person.