I believe the law in the UK allows for a jail sentence of up to two years for not revealing a password or encryption key. While it's a dubious law in may ways,

I believe the law in the UK allows for a jail sentence of up to two years for not revealing a password or encryption key. While it's a dubious law in may ways, when you hear a UK politician calling for longer detention without trial and stating needing to break encryption you can at least point to this law and say that their claims about longer detention are nonsense.