Enrique Galindo, chief of the Mexican Federal Police, listens during an interview with Reuters at the headquarters of the Federal Police in Mexico City, Mexico November 26, 2015. Mexico's Federal Police is open to an investigation into its possible use of excessive force, particularly in two incidents this year that claimed the lives of dozens of people, police chief Enrique Galindo said on Thursday. Mexico's National Human Rights Commision (CNDH) on Wednesday said six people died unlawfully after police were excessive in their efforts to restrain a group of protesters in the violence-wracked city of Apatzingan in Michoacan state. REUTERS/Daniel Becerril