ACPO have not suggested this.
This has been submitted for debate at their June conference. This has not yet been discussed by ACPO members let alone voted on or approved as ACPO policy.
It would require a change in the Law which the Home Office have already let know, they are not in favour of.
This call from the fringes for disciminatory fast tracking crops up regularly and obviously, no one takes it seriously. Here is the same call from 2004
http://news.bbc.co.uk/1/hi/uk/3659650.stm
It is not a good idea, and will not happen for that very reason. Look at the bigger picture not the news grabbing headines.