The union suing to block a major push for privatization of state prisons wants to interview former Corrections Secretary Ed Buss, but the state is trying to prevent it, reports the News Service of Florida. The Tallahassee Democrat reported Tuesday that the Police Benevolent Association gave the state notice on Monday that it wants to depose Buss in its lawsuit seeking to prevent the privatization of nearly 30 prisons in Florida. Buss was forced out as secretary earlier this summer after Gov. Rick Scott said the two had differences in philosophy about running the prison system. Buss was widely believed to have not been enthusiastic enough about privatization. The Tallahassee Democrat reported that the state filed a motion to try to quash the PBA’s effort to call Buss in the case. “As a former agency head, Mr. Buss is entitled not to be compelled to testify ‘unless it has been established that the testimony to be elicited is necessary, relevant and unavailable from other sources,'” the state said in its motion. The PBA can’t show that, the state said.