However reprehensible their criminal activities might have been, the authorities were duty bound to investigate information volunteered.
It could have been a time wasting exercise. On this occasion the opposite was true.
- initially one of these criminals contacted Operation Grange officers with information
- whatever the character or criminality of the informant this information had to be checked out
- during the verification process an unsolved rape from 2005 which mimicked the information received from the criminal was uncovered
- witness evidence and forensic evidence proved part of the criminal's statement and was acceptable enough to lead to the conviction of CB for aggravated rape
Without the criminal giving up CB's name to the police I doubt if he would ever have stood trial for rape in 2019. The information could only have come from one of CB's criminal acquaintances. Had investigators deliberately ignored what the witness imparted, that would have been a dereliction of duty which would have left a very dangerous man free to walk the streets and DM's rapist left unpunished.