A Tokyo court on Tuesday rejected ousted Nissan Motor chairman Carlos Ghosn’s appeal to end his detention following his arrest last month on allegations of financial misconduct.

Ghosn’s lawyers filed an appeal to overturn the detention later on Tuesday but it was rejected by the court by evening.

From indictment, cases typically take months to go to trial. In the past, suspects who have been indicted have seldom been freed on bail, but in recent years that has become more common, Masashi Akita, a defence lawyer, told Reutrs.

It was unclear whether Ghosn would be freed on bail as some legal experts had said he may be a flight risk.

Ghosn’s lawyer in Tokyo, Motonari Otsuru, could not be reached at his office by Reuters for comment.

But Kelly’s lawyer, Yoichi Kitamura, said he was certain that his client’s innocence would become clear in court.

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“The reason I’m confident is because there was no violation of the financial instruments and exchange law,” he said.

The executive has been treated like others in detention, held in a small, chilly room, with limited opportunities to shower and shave, a Reuters source familiar with the matter has said.

Asked about criticism that Japanese prosecutors often try to force confessions from suspects, deputy prosecutor at the Tokyo District Public Prosecutors Office, Shin Kukimoto, has said no such method was being used with Ghosn and Kelly.