It’s starting already, the backtracking. From the Telegraph:

The Government signalled yesterday that it was willing to breach the first of its “red line” safeguards on the European constitution by agreeing to cede Britain’s veto over sensitive areas of criminal justice.
The shift in policy raises fears that Brussels could acquire the power to interfere with the common law tradition of habeas corpus, trial by jury, and rules of evidence.

Just in case anyone thinks this is not important :
In most of Europe there are no juries. Trials are heard by a single judge or panel.
In most of Europe there is no Habeus Corpus. One can be held, in jail, without being either convicted or charged of anything at all.
If we sign up for this nonsense then we deserve to get the totalitarian state that will ensue.