Three men denied government jobs because of a history of schizophrenia in their families had a low chance of developing the disorder, a leading British psychiatrist told a court yesterday. Testifying in the District Court, Professor Peter McGuffin, director of the Social Genetic and Developmental Psychiatry Research Centre in Britain, also attacked government medical reports on the men, saying they contained generalisations not backed up by evidence. 'If [the report] was written by someone under my supervision, I wouldn't have accepted that,' Professor McGuffin said. The men are seeking more than $7 million in damages from the fire service, ambulance service and Customs for loss of income and personal injury. The court has ordered they only be identified by their family names. Mr Kwong, 23, applied to be an ambulance officer in 1996 and Mr Yeung, 21, a fireman in 1997. Although they passed the necessary tests, they were refused jobs after they were found to be the sons of schizophrenics. Mr Wong, 23, was 'abruptly dismissed' by Customs in 1997 after officials found out his mother had schizophrenia. Professor McGuffin also said research from a report he had written was used by one of the examining psychiatrists, Dr Lo Chun-wai, without attribution. The hearing continues today before Judge Donald Christie.