In March 2006, six plainclothes agents of Mexico's Federal Investigations Agency (AFI) raided a market in Santiago Mexquititlán, Querétaro, in search of unauthorized copies of copyrighted works. The agents later alleged that they were held hostage by vendors during the raid. Three women were convicted of the alleged kidnapping. In September 2009, Jacinta Francisco Marcial and in April 2010 Alberta Alcántara and Teresa González, were released from prison after the charges against them were dropped.