Poland's democracy champion and Solidarity founder Lech Walesa says he might sue a history institute to court over documents it released that purport he was a communist-era paid informant.

Walesa denies the allegations and says the documents released by the state National Remembrance Institute last week are forged.

The 72-year-old Walesa said Monday he wants to see these files and that the issue will "probably" end in court, where he will want to prove that they have been fabricated. The documents were recently seized from the home of a communist-era official and were speedily released by the institute without deeper examination by experts.

Also Monday, the institute's prosecutors were searching the house of the late communist-era leader, Gen. Wojciech Jaruzelski, for any documents that could be found there.