Rights that don't fully exist in the UK anymore:
* Free speech (see prohibitions on "hate speech" and "extremism")
* The right to remain silent (your silence can be used as evidence of guilt in court)
* The right to a jury trial (the UK now allows majority, 10-2, verdicts. The right to a jury trial can also be removed in cases where the government suspects jury tampering.)
* Habeas Corpus (up to 14 days detention without charge of terrorism suspects. it was 28 days until 2011)
* The right to be secure from unreasonable search and seizure (in many situations the standard of evidence has been lowered from "probable cause" to "reasonable suspicion" and is increasingly at the discretion of police/government instead of courts)
* The prohibition on double jeopardy (the government can petition for a new trial after acquittal if substantial new evidence comes to light)
* The exclusion of illegally gathered evidence from court (the UK never had an exclusionary principle)
* The right to self-defense (there is no castle doctrine in the UK. In every US state except Vermont, you can use lethal force with impunity against an intruder to your home. See the UK case of Tony Martin, who was convicted of murder for shooting robbers who were in his home)
* The right to assemble
* The right to keep arms (I realize this crowd may not be a fan of this right, but nevertheless it used to be a right Englishmen and Americans both enjoyed)