I'm skating on thin ice in terms of de-anonymising myself as it is!
The UK police seize computers all the time, I know someone who got arrested for a drunken brawl and the police carried out a section 18 search of their uni housing and seized everyones laptop, took several weeks to return them too
Yes, I plan my IT stuff assuming seizure. Everything is encrypted and backed up in "the Cloud". Just the reality of refusing to fund the state. I suspect my time in the UK is drawing to a close.