The wife of a Louisiana police chief, who was charged amid a sweeping federal investigation into an immigration visa fraud scheme, was also arrested on Thursday

Four law enforcement officials, including two current police chiefs, are charged in connection with a scheme to fraudulently secure U.S. visas.

Federal authorities charged three current and former Louisiana police chiefs with taking money in exchange for filing false police reports, allowing illegal immigrants to seek a visa that will enable crime victims to stay in the United States and prevent them from being deported.