The phrase "corruption conviction" means that someone has been found guilty of committing acts of corruption, which typically involves using their position or power for personal gain through dishonest or illegal means. Full definition
Look for lots of talk about agenda setting and wiping the slate clean from a difficult 2015 that was marked by high profile corruption convictions of two former legislative leaders. (nystateofpolitics.com)
With two recent federal corruption convictions, each saw an opportunity to grab more. (gothamgazette.com)
That's because of his past public corruption convictions. (wshu.org)