Masakuni Murakami, former head of the Liberal Democratic Party's House of Councilors members, agreed Monday to testify under oath over his ties to KSD, a mutual-aid foundation at the heart of a widening bribery scandal.
Murakami revealed his decision in the morning during a meeting with Mikio Aoki, secretary general of the party's Upper House delegation, LDP officials said.
Opposition parties have been calling for Murakami to give sworn Diet testimony over his links to KSD, from which he allegedly received huge financial support. Sworn testimony carries the risk of perjury charges.