Police broke up a rave with 100 revellers and caught them as they fled into the woods thanks to a thermal camera.
Lancashire Constabulary slammed the Covid rule-breakers as 'unbelievably selfish' after finding them partying in a quarry near Chorley, Lancashire.
The revellers were taking laughing gas and smoking cannabis at the bash, with officers fining 12 people for breaching coronavirus restrictions, Lancashire Live reports.
Throngs of revellers can be seen dancing together in thermal camera footage, while police body camera video shows officers breaking up the event.
In the clip, police can be seen scouring the scene with flashlights, with one officer telling party-goers to come out of the woods.
He said: "Oi, you, black coat, fur hood. Get up here now. Who else is there with you? Come out."
Officers said when they arrived between 80 and 100 people were already at the rave with 'more arriving all the time' in the early hours of Sunday morning.
Threats of violence were made to police as they broke it up.
Police confirmed two people were also "dealt with" for drugs offences and the music equipment being used was seized.
Ch Insp Phil Hutchinson, of Lancashire Police, said: “Most people are doing their bit to stop the spread of the virus so it is shocking that a minority of people still think they are exempt.
“This party was a blatant breach of the current restrictions and it is unbelievably selfish for anyone to believe they can gather in these numbers when so many law-abiding citizens have not seen their friends and family properly in almost a year."
LancsLive previously reported how images of the aftermath showed bottles, rubbish, and laughing gas (Nitrous oxide) capsules scattered across the beauty spot.
The huge rave was one of 529 lockdown breaches reported across Lancashire this weekend - an increase on the previous weekend - resulting in 238 fines being issued.
Police raided a poker tournament above a Blackburn restaurant on Saturday night and found 26 people - including some who travelled from as far as Nottingham - playing poker and having a party.
Other incidents included a large party at a farm in Dunnockshaw and a group of 10 people gathering for a 30th birthday karaoke party in Walton le Dale.
