He is a member of the Group of Lawyers in Opposition to the Victimization and Damages of the AUM Shinri-kyo (AUM Supreme Truth cult), an organization with approximately 300 member lawyers. He is also a member (former chair) of the Subcommittee on Consumers and Religious Organizations under the Committee on Consumer Problems of the Japan Federation of Bar Associations, which handle complaints and troubles regarding fund-raising and financial activities of religious organizations.