'A constant game of cat and mouse': Inside the police crackdown on illegal moped delivery drivers

The first thing you notice when immigration officers stop a possible illegal moped delivery driver is the speed in which the suspect quickly taps on their mobile.

"We're in their WhatsApp groups - they'll be telling thousands now that we're here... so our cover is blown," the lead immigration officer tells me.

"It's like a constant game of cat and mouse."

Twelve Immigration Enforcement officers, part of the Home Office, are joining colleagues from Avon and Somerset Police in a crackdown on road offences and migrants working illegally.

The West of England and Wales has seen the highest number of arrests over the last year for illegal workers outside of London.

"It is a problem... we're tackling it," Murad Mohammed, from Immigration Enforcement, says. He covers all the devolved nations.

"This is just one of the operations going on around the country, every day of the week, every month of the year."

Just outside the Cabot Circus shopping complex, we stop a young Albanian man who arrived in the UK on the back of a truck.

He's on an expensive and fast-looking e-bike, with a new-looking Just Eat delivery bag.

He says he just uses it for "groceries" - but the officer isn't buying it. He's arrested, but then bailed instantly.

We don't know the specifics of his case, but one officer tells me this suspected offence won't count against his asylum claim.

Such is the scale of the problem - the backlog, loopholes and the complexity of cases - that trying to keep on top of it feels impossible.

This is one of many raids happening across the UK as part of what the government says is a "blitz" targeting illegal working hotspots.

Angela Eagle, the border security and asylum minister, joins the team for an hour at one of Bristol's retail parks, scattered with fast food chains and, therefore, delivery bikes.

She says arrests for illegal working are up over the last year by 51% from the year before, to more than 7,000.

"If we find you working, you can lose access to the hotel or the support you have [been] given under false pretences," she said.

"We are cracking down on that abuse, and we intend to keep doing so."

There are reports that asylum seekers can rent legitimate delivery-driver accounts within hours of arriving in the country - skipping employment legality checks.

Uber Eats, Deliveroo, and Just Eat all told Sky News they're continuing to strengthen the technology they use to remove anyone working illegally.

But a new Border Security Bill, working its way through Parliament, could see companies fined £60,000 for each illegal worker discovered, director disqualifications and potential prison sentences of up to five years.

"I had them all in to see me last week and I told them in no uncertain terms that we take a very tough line on this kind of abuse and they've got to change their systems so they can drive it out and off their platforms," the minister tells me.

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The gig economy - so prevalent in every city - creates another incentive for those wanting to risk their lives coming to the UK illegally.

A bike and a phone provide a way to repay debts to gang masters.

There were eight arrests today in Bristol, one or two taken into custody, but it was 12 hours of hard work by a dozen immigration officers and the support of the police.

Meanwhile, more than 20,000 migrants have arrived in the UK so far in 2025 - a record number at this point of the year.

As two mopeds are pushed onto a low-loader, you can't help but feel, despite the best intentions, that at the moment, this is a losing battle.

(c) Sky News 2025: 'A constant game of cat and mouse': Inside the police crackdown on illegal moped delivery drive