He was taken to Blackburn Police Headquarters , where he was formally cautioned as to his right to silence .
Peter Griffiths was arrested by DCI Capstick as he left his Blackburn home to attend work on the evening of 12 August .
Peter Griffiths was taken to Blackburn Police Headquarters , where Peter Griffiths was formally cautioned as to Peter Griffiths ' right to silence .
Peter Griffiths was arrested by DCI Capstick as he left his Blackburn home to attend work on the evening of 12 August .