In 1991 the City of London Police, (COLP) undertook an enquiry due to allegations made by Jeremy Bamber to the Police Complaints Authority (now known as the IPCC). The investigation was undertaken to determine whether his allegations of police misconduct in investigating the deaths of his family on 7th August 1985 were meritorious.
2. However COLP was instructed by the Director of Public Prosecutions (DPP) to edit any evidence that came under their scrutiny which would incriminate police officers of Essex Police as to a finding that their initial investigation was tainted. Jeremy Bamber was not aware of this until recently.
3. This was due to the Dickinson enquiry (1985-86) and the fact that all evidence that came under scrutiny in that enquiry regarding police misconduct was placed under public interest immunity, (PII).