A report submitted by a court-commissioned expert to a trial session Friday suggests that a Yokohama medical examiner who claims to have performed an autopsy on a man who died in 1997 may be lying.

According to the report put together by Shigemi Oshida, a professor of forensic medicine at Nihon University, DNA analysis indicates that samples of human organs preserved by the 71-year-old medical examiner are not those of Mikio Kubo, a self-employed Yokohama man who died in July 1997 after he was found slumped inside his car.

Oshida's report was submitted to a session of a civil trial in which Kubo's family is suing the Kanagawa Prefectural Government for damages over his death.

The family said the same day that they will ask the court to summon the medical examiner as a witness and will also file a criminal complaint against him.