And note that within the UK there are some big differences! The wiki link in the parent comment is for the England and Wales version of the police statement made at time of arrest, which points out that:

> You do not have to say anything, but it may harm your defence if you do not mention, when questioned, something which you later rely on in court. Anything you do say may be given in evidence.

But in Scotland, which has a slightly different (and obviously, of course, much better) legal system, the police statement is:

> You are not obliged to say anything but anything you do say will be noted and may be used in evidence.

The difference is due to the fact that under Scots Law, no adverse inference can be drawn based on a persons silence.

I am not a lawyer, but I would assume that they would recommend getting arrested in Scotland, rather than England, if you absolutely must commit crimes in the UK...