Colonies made an additional $100,000 in total contributions to two committees controlled by former Supervisor Bill Postmus, who pleaded guilty in March to accepting a bribe in exchange for his settlement vote. Postmus is cooperating with authorities.
The donations themselves, though, were properly listed on each of the committee's campaign disclosure reports.
Jessica Levinson, an attorney at the Los Angeles-based Center for Government Studies, said proving whether a contribution is a crime, including a bribe, is difficult.
"You do need a level of intent to prove it," she said.