Criminology and Psychology

  Local and federal authorities moved Thursday to break up an alleged drug trafficking ring connecting a major Mexican cartel and San Gabriel Valley street gangs, arresting 17 people in a pre-dawn sweep. A federal indictment unsealed Thursday charges 27 defendants with making, possessing and dealing methamphetamine imported by La Familia Michoacana, one of Mexico’s most violent cartels, to two Pomona gangs: Los Amables and Westside Pomona Malditos. Seven law enforcement agencies, including the Pasadena and Pomona police, the Los Angeles County Sheriff’s Department, the FBI and the Drug Enforcement Administration, were involved in the sweep. Thursday’s crackdown is the culmination of a probe called Operation Crystal Light, a 16-month investigation by the San Gabriel Valley Safe Streets Gang Task Force. The investigation was launched after a 2011 kidnapping among suspected gang members in Southern California. Officers said they seized nine weapons, an undisclose...