BBC Spotlight will televise an investigation carried out by reporter Mandy McAuley with two Police Service of Northern Ireland whistleblowers speaking publicly for the first time about serious allegations of misconduct and negligence in one of the largest police districts in Northern Ireland.
The programme will air this evening on BBC1 at 10.40pm.
In response to a query submitted by Causeway Coast Community this morning a PSNI spokesperson said "We are aware of a BBC Spotlight programme which is due to be aired on Tuesday 31 May. The Police Service of Northern Ireland will not be making any comment prior to this."
