I've seen warrants issued over a year late, or to addresses that the suspect had left years ago. On top of that the addresses had sometimes been visited three or four separate times by other officers, but this never made it through to the PNC.

Doesn't really need further comment at El Reg, but I think there is space only for one elephant in the room.

Possibly true, but maybe the elephant was female... and pregnant!

"Where any evidence of misconduct was found disciplinary investigations have been undertaken."

How about investigations into incompetence?