The British government still considers that the MKO is a terrorist group despite being recently removed from the UK’s proscribed organizations, according to Justice Secretary Jack Straw. 
During a meeting with visiting Iranian Deputy Foreign Minister for European Affairs, Straw also said that the UK strongly supports keeping the MKO on the EU’s terrorist list.
The British government has argued that it had no alternative but to accept a recent court decision to remove the group, which has assassinated thousands of Iranians, from its list of proscribed organizations under the Terrorism Act 2000.
But at their meeting on Tuesday night, Safari described the decision as both "political and unlawful" and said it was a "black stain on UK-Iran relations."
The deputy foreign minister, who started a three-day visit to London on Monday, also expressed concern about the long-drawn out saga of the US trying to extradite former Iranian Ambassador to Jordan, Nosratollah Tajik, from the UK while at Durham University.
He was particularly distressed about Tajik’s physical and psychological condition caused by two years of duress, while he was not only innocent but a victim of entrapment in a secret US sting operation.
But Safari expressed hope that the case would be successfully resolved as soon as possible and clear the "black mark" in the UK’s relations with Iran to ensure it does not happen again.