British police went undercover to trick a 25-year-old delivery driver into giving them his cellphone, leading to his conviction on terrorism charges Friday, CNN reports. Back in July, undercover officers posing as company managers showed up at Junead Khan's workplace and asked to see his work records. When they asked for proof of where he was on a certain day, he showed them a record from that day on his iPhone. They asked for a closer look then arrested Khan once he handed over the phone. So as not to be locked out, the officers quickly changed the phone's password, giving them complete access.
Khan's iPhone ended up being a "goldmine of information." He used it to keep in contact with a British ISIS fighter in Syria, who sent him bomb-making instructions, the BBC reports. There was also an encrypted conversation in which he lamented missing an opportunity to kill US soldiers near a base on his delivery route. "When I saw these US soldiers on road it just looked simple but I had nothing on me or would've got into an accident with them and made them get out the car," NBC News quotes the message. Thanks in part to evidence on his iPhone, Khan was convicted of preparing terrorist acts and planning to join ISIS in Syria on Friday. (Read more ISIS stories.)