UK arrested Tommy Robinson for reporting child-rape gangs that the government caters to. The UK banned reporting of his arrest, denied him a lawyer, and is trying to have him assassinated in prison. Regardless of how you feel about his views, this is a totalitarian government.
Tommy Robinson isn't the first to that the UK has jailed after a secret trial. Melanie Shaw tried to expose child abuse in a Nottinghamshire kids home -- it wasn't foreigners doing the molesting, but many members of the UK's parliament. The government kidnapped her child and permanently took it away. Police from 3 forces have treated her like a terrorist and themselves broken the law. Police even constantly come by to rob her phone and money. She was tried in a case so secret the court staff had no knowledge of it. Her lawyer, like Tommy's, wasn't present. She has been held for over 2 years in Peterborough Prison. read, read
A political prisoner is someone held in prison or other types of confinement such as in the military or a mental institution because their ideas are deemed by an authority to either challenge or threaten the state.
Usually a political prisoner is a prisoner of conscience, deprived of freedom of speech such as Falun Gong members in China, prisoners of which China torturers to death and then harvests their organs.
March 2018, the United Kingdom imprisoned the leaders of the political party Britain First merely for "distribution of leaflets and posting of online videos" opposing immigration. Merely for nonviolent free speech, the UK government imprisoned them in the UK! And just like with Tommy Robinson, the UK constantly tries to have them murdered in prison. Another victim is Melanie Shaw who tried to expose how members of parliament had abused her and others in a Nottinghamshire kids home. She got a very similar treatment.