The document describes how thieves steal money from ATMs using card-trapping devices. It explains that thieves work in teams, with one person placing a transparent film trap inside the ATM card slot while another acts as a lookout. When an unsuspecting customer inserts their card, it gets trapped while the thief pretends to help get it back, using the opportunity to get the PIN. They then retrieve the card from the trap once the coast is clear and withdraw money from the victim's account. The transparent film is difficult to detect but can be removed to recover trapped cards if tampering is noticed.