Businessman Patrick Tang Kim-kwan will not be allowed to introduce further evidence when he asks a court to order his former mistress to return four properties he gave her. A High Court judge ruled yesterday that the new material - which includes a recording of a foul-mouthed conversation between the former lovers - was only 'marginally relevant' to the case, which is due to be heard later this month. Tang (pictured), dubbed the 'king of shoes', is suing Karen Lee Chi-ting for the return of four properties he registered in her name. He claims the properties were a 'conditional gift', made after their relationship developed in 2002, and depended on her remaining faithful to him. A five-day hearing is scheduled to start on April 16 in the High Court. Tang had hoped to file a third witness statement after changing his legal team about a month ago. It would have included transaction records for a flat at the City One development in Sha Tin, which is not one of the flats at the centre of the case, as well as the taped conversation. Neither Tang nor Lee attended yesterday's hearing. But Lee's counsel objected to the submission of the new statement, which would 'derail the trial' as Lee would also need to file new statements and possibly search for new evidence. Though Lee did not dispute the authenticity of the tape, her counsel argued that it contained only a conversation in which Tang asked 'when and where did she come to know that TVB actor'. The 'TVB actor' is thought to be Francois Huynh Wong Cheung-fat, a former winner of the Mr Hong Kong beauty contest who was named in the original writ as a person Lee had a relationship with. Tang's submission also included newspaper and magazine reports of Lee's relationship with Wong. Madam Justice Queeny Au Yeung Kwai-yue said Tang's attempts to file new evidence so close to the trial 'make a mockery of case management'.