dan simmons has been finding out more. preparing for a dawn raid.s the door�*s breached, they will go in and then there will be a slight pause. officers are on their way to a terraced house in north london. this is the city of london police force's 10th raid against covid scammers this year alone. operation parasite is aiming to seize evidence before devices can be locked or destroyed. police! police with a warrant! a red box is flung out of a bedroom window — it seems the suspect has something to hide. but it's what the cops will find inside the house that makes them certain they have their man. that's a sim file, so it is essentially one, two, three, four, five, six, seven, eight mobile phones and it is used by the fraudsters to send messages. specialist equipment housing multiple sim cards is designed to fire out thousands of texts at a time, in a type of fraud known as sms fishing, or �*smishing'. officers are now bagging up anything they believe could be evidence — phones, computers and the like. they've also have access to a digital dog that c