Did UOP run a dirty tricks campaign against Kaczynśki?

UOP, apart from being a state security service, ran secret operations against many political parties, including the Centre Alliance, (PC), led by the Kaczyński brothers. He mainly referred to an allegedly forged vow of Kaczyński to abide by martial law. Still, the leader of Law and Justice confirmed his support for the idea of vetting, though with some concerns about the protection of innocent people's privacy. (Gazeta Wyborcza, June 3-4, pp.1-3) J.L.