Phnom Penh Municipal Court officials refused to meet with opposition leader Sam Rainsy Wednesday, as he sought to provide what he says is evidence of Foreign Minister Hor Namhong's involvement in a Khmer Rouge prison camp.
Sam Rainsy has been summoned several times to the court since April, but he said he had gone of his own volition Wednesday.
He sought to submit to the court the alleged testimony of a former Boeung Trabek camp inmate that accuses Hor Namhong of being the chief of the prison.
Hor Namhong, who has maintained he was a prisoner at the camp, sued Sam Rainsy for defamation and disinformation for similar accusations made at a public rally in April.
Sam Rainsy said Wednesday the courts were "cheap" and "biased" to the ruling Cambodian People's Party.
Court officials were not immediately available to for comment.
