Alexandre Robert, a French 15-year-old, was having a fine summer in this tourist paradise on the Persian Gulf. It was Bastille Day and he and a classmate had escaped the July heat at the beach for an air-conditioned arcade.

Just after sunset, Alex says he was rushing to meet his father for dinner when he bumped into an acquaintance, a 17-year-old native-born student at the American school, who said he and his cousin could drop Alex off at home.

There were, in fact, three Emirati men in the car, including a pair of former convicts ages 35 and 18, according to Alex. He says they drove him past his house and into a dark patch of desert, between a row of new villas and a power plant, took away his cellphone, threatened him with a knife and a club, and told him they would kill his family if he ever reported them.

Then they stripped off his pants and one by one sodomized him in the back seat of the car. They dumped Alex across from one of Dubai's luxury hotel towers.