As Benjamin Franklin wisely said almost 250 years ago, "People willing to trade their freedom for security deserve neither and will lose both."
Habeas Corpus was part of English law for over 800 years but it has been undermined over the last ten years or so. I wish people would wake up to the dangers of a big government - it may appear perfectly reasonable to abandon an ancient principle in the face of Muslim extremism and under a generally benign government, but mechanisms are in place such that should we ever get a malicious government in control, many tools of repression are already on the statute books.
Proof of this lies in incidents such as this one. You will no doubt remember the case where an old chap, Walter Wolfgang, was arrested and held by the police for (anti-Iraq war) heckling at the Labour party conference. His heckle of 'nonsense' was enough for him to be detained under anti-terrorism legislation and nearly prosecuted under anti-stalking legislation. That Mr Wolfgang was expressing a commonly held view makes this incident all the more damning.
It must also been remembered that, at this time, the government of the day were pushing for 90 day detention without charge for terrorist offences. Had this law been enacted, Mr Wolfgang could well have found himself locked up without charge for 90 days - essentially for disagreeing with a government minister on the Iraq war policy. That is frightening.