The Foyle MLA was commenting after meeting with British Secretary of State Karen Bradley in Derry today.
Tony Taylor was thrown back in jail in March 2016 by the then Secretary of State Theresa Villiers on the word of MI5 who claimed he had breached the terms of his release licence for explosive offences.
“Tony Taylor’s continued detention is wrong and a clear violation of his human rights,” Raymond McCartney said.
“He has now been imprisoned for over two years, during which time, the British Government has consistently failed to produce any evidence which could in any way justify his continued detention.
“Sinn Féin met with the British Secretary of State today and we reminded her of the considerable strain that Tony’s detention is having on his wife, family and parents.
“We again called for his immediate release and we will continue to raise his case with every level of the British Government until he is freed,” added the Foyle MLA.