A heated war of words has broken out between Tokyo and a United Nations expert over a contentious bill that would criminalize conspiracies. That legislation was rammed through the Lower House on Tuesday despite raucous protests.

The government should take seriously a stern rebuke issued last week by Joe Cannataci, U.N. Special Rapporteur on the right to privacy, and rethink a hasty passage of the state-backed bill that would pave the way for a police crackdown on preparations for crimes — potentially at the expense of individual rights — opposition lawmakers told the Lower House plenary session in a last-ditch protest of the vote.

The bill, which will revise the current anti-organized crime law, nonetheless cleared the chamber with the backing of the ruling Liberal Democratic Party and partner Komeito, as well as the conservative opposition Nippon Ishin no Kai. It is now set to be deliberated in the Upper House.