In these videos taken from the web site of the El Heraldo de Leon on Tuesday July 1, 2008, a policeman undergoes a torture session by fellow officers during a training session for an elite unit in the city of Leon, Mexico. Several videos, first obtained by the Heraldo de Leon newspaper, have created an uproar in Mexico as police struggle with recent scandals over abuses.

Two of the videos – broadcast by national television networks and displayed on newspaper Internet sites – showed what Leon city Police Chief Carlos Tornero described as training for an elite unit that must face “real-life, high-stress situations,” such as kidnapping and torture by organized crime groups.

But many Mexicans saw a sinister side, especially at a moment when police and soldiers across the country are struggling with scandals over alleged abuses.

“They are teaching police … to torture!” read the headline in the Mexico City newspaper Reforma.

Human rights investigators in Guanajuato state, where Leon is located, are looking into the tapes, and the National Human Rights Commission also expressed concerned.

“It’s very worrisome that there may be training courses that teach people to torture,” said Raul Plascencia, one of the commission’s top inspectors.

One of the videos, first obtained by the newspaper El Heraldo de Leon, shows police appearing to squirt water up a man’s nose – a technique once notorious among Mexican police. Then they dunk his head in a hole said to be full of excrement and rats. The man gasps for air and moans repeatedly.

In another video, an unidentified English-speaking trainer has an exhausted agent roll into his own vomit. Other officers then drag him through the mess.