Judgment has been reserved in a former IRA hunger striker's new legal challenge to a police stop and search operation.
Lawyers for Bernard Fox are seeking to overturn a ruling that the process was lawful.
The Court of Appeal heard a joint case brought by him and Christine McNulty alongside a similar challenge by a brother-in-law of Martin McGuinness.
Marvin Canning (50), from the Glendara area of Londonderry, claimed powers used to stop and search him 50 times are incompatible with his human rights.
Fox, from Belfast, took part in the 1981 IRA hunger strikes inside the Maze Prison.
Police stopped the car he was travelling in with Ms McNulty in Co Armagh in March 2011.
Both them and the vehicle were searched under the powers of the Justice and Security (NI) Act 2007.
Similar arguments were advanced on behalf of Mr Canning.
A panel of judges in the Court of Appeal reserved their decision.