I relunctantly updated the Is the UK a police state? page with mentions of the Serious Crime and Mental Health Bills.
The Serious Crime Bill will, if passed as is, gives the Home Office further leeway to punish individuals that have not committed any crime and have not been tried. There's an excellent summary at MagnaCartaPlus. Breach of the proposed Serious Crime Prevention Order, would be a criminal offense (up to five years in jail) in a similar way as for the breach of an ASBO.
The Mental Health Bill, which fortunately is encountering some opposition, would allow ministers to force the detention of those they consider mentally ill (and dangerous).
These bills, if passed, will give even more powers to the Government to lock up individuals that are so calm, well-behaved and law-abiding that they can't be tried and convicted in a court of Law.