Many years ago my mother had a visit from the police who were looking for my brother. Luckily DM knew what it was about and explained that the person they were looking for was actually using DB's identity. She showed them his photo and they accepted her explanation. It was true though someone DB knew when he was a teenager has used his identity for decades.
Years later DB was between houses and was staying at DM's house. He phoned work saying he would be in later, then decided to not go in and phoned again, his boss insisted he come in immediately, (he had the sort of job where he could work from home and didn't go to the office every day). DB didn't go and about half an hour later the police surrounded DM's house. They were looking for the crook who was still using DB's identity years later. Apparently the police had been at DB's work waiting for him and that is why his boss had to try and get him to come in. When they realised the mistaken identity (it's on their records) they came in and had a cup of tea with DM and DB.
DB found out later his ex had tipped the police off, knowing about this other person using my brother's name. She really should have been charged for wasting their time. It's a true story and that's my family's dealings with being raided by the police.