The Raiders signed former Packers CB Brandon Underwood on Thursday, the team announced.
Underwood did not play in 2011 and has had run-ins with the law. He was fined $379 after pleading no contest to a charge of prostitution and non-marital sexual intercourse from an incident at a golf tournament in June 2010.
Last year, he was charged with domestic disorderly conduct following the Packers' Super Bowl ring ceremony.
Underwood played in 23 games with the Packers in 2009-10, totaling 21 tackles. The Raiders' new general manager, Reggie McKenzie, was with the Packers' organization when Underwood was there.