First of six murder investigations featuring the forensic scientists and police officers who solved the original cases. Introduced by Ludovic Kennedy

A sheep's head is impaled on a farm gatepost, underneath is a note which reads 'You next'. It is the first of a series of bizarre and horrific events investigated by scientists from the Chepstow forensic science laboratory and police from the Avon and Somerset constabulary.
Names of people and places have been changed.

Feature: page 82