According to the Wikipedia, he was a member:
He was a member of the 17th Politburo Standing Committee (PSC), China's top decision-making body, and the Secretary of the Central Political and Legislative Committee between 2007 and 2012. In that position, Zhou oversaw China's security apparatus and law enforcement institutions, with power stretching into courts, prosecution agencies, police forces, paramilitary forces, and intelligence organs.
Never mind. Wrong guy.