Mexican student given police chief role

A 20-year-old criminology student has been made police chief in a border town in one of Mexico's most violent areas.

Marisol Valles got the job in Praxedis G Guerrero, in the northern state of Chihuahua, following an invitation from the mayor.

Chihuahua is the battleground for drugs cartels fighting over lucrative smuggling routes across the US border.

Ben Tornquist reports.