Re: Liberty for temporary safety
Don't trust Labour either. Remember ID cards?
It may have escaped your attention, but those who were in power and responsible for that sort of thing around a decade ago are substantively not the same people in charge of the Labour Party now. If you concentrate really hard, you might remember a leadership election, where the red Tories got voted out, and replaced by a leftie vegetarian bloke with a beard, and then a couple of failed coups where they tried to get rid of him again.
Many of the people who now support the Labour Party share my opinions of those who were at the head of the party under Blair, and those opinions are not kind. This is why the membership of the party fell while Labour were last in power, and then grew massively once the Blairites were toppled.
Add to this the suggestion that Home Secretaries are usually not well qualified for the job (I can't recall one who has actually ever worked in policing, for example), then they will be getting their opinions from the senior civil servants who feed them to them. You have to ask yourself who the 'Sir Humphrey' is, because the coordinated drive towards authoritarianism across a number of successive governments could only plausibly be coming from Whitehall.