A group of current or former Louisiana police chiefs and the operator of a Subway sandwich shop are accused of colluding in a decade-long scheme to falsify police reports to help foreign nationals get visas meant for crime victims or witnesses.

A federal grand jury returned a 62-count indictment charging two police chiefs, a former police chief, a marshal and the restaurant operator on charges including bribery, mail fraud, money laundering, conspiracy and immigration fraud, a federal prosecutor said Wednesday.