Only one person in the UK has been fined by police for breaching quarantine rules after arriving from abroad - and that was issued by Lincolnshire Police.
The data was released by the National Police Chiefs' Council (NPCC) after holiday-makers in Spain were told they would have to self-isolate for 14 days when returning to Britain.
The man, from Boston, had arrived from Bulgaria on July 13th and knew he had to self-isolate. But when police carried out a routine check at his home, they discovered he was in Spalding, and he was then given a fixed penalty notice.
A Lincolnshire Police spokesperson said: "Officers attended the address to conduct an NPCC check on behalf of Border Force and he was not present.
"He was spoken to on the phone and stated he was shopping at Asda. This was found to be a lie and he was in fact out in Spalding with friends. A ticket was issued.”
Quarantine breaches can be punished with fines of between £100 and £1,000.
NPCC chairman Martin Hewitt said that only one person had been issued with a fixed penalty notice by police for breaching quarantine rules in Britain and that was the one handed out by Lincolnshire Police.
But he added that enforcement of the regulations is usually a matter for Border Force and public health officials.
You would hope that people would come back and be responsible. I would hope they would be, but we will be in a position to carry out the role that we have in this.
Mr Hewitt says compliance with the Government rules had been good so far, although he is unsure how people returning from Spain will react.
But he says the police will be ready to take action if needed: "I guess time will tell how that plays through.
"It's not inconceivable that this could happen with other countries as we move forward, and I think the Government has made clear about that as well, so we will monitor that and work through the process."