One in five children in Bulgaria has come across online sex offers. Currently there are more than 160 Bulgarian websites that no one bothers to control. The usual victims are most often children aged from 10 to 14, said Yavor Kolev, internet crime expert at Combatting Organized Crime General Directorate. He gave the start to the campaign Who Stands Across Me on the Web. Kolev said Bulgarian children experienced the weakest parental control over the worldwide web.