Burglary isn't worth investigating

Link: Police to probe Ian Huntley suicide attempt

Suicide isn't a crime. Nor is attempted suicide. Given his horrendous crime, Huntley's desire to die is perfectly rational and it is his life to end if he wishes. So what crime is the "Ministry of Justice" (how I hate that un-English name) investigating? Huntley's criminal negligence in botching the job, perhaps? If not, who will join me in a private prosecution of MiniJust for the real offence of wasting police time?