Saturday night in South London

Hundreds of young people are gathering for the latest craze

An acid house party in a disused warehouse

Coaches will take them to a destination which is deliberate kept secret to avoid the police

Wait, where you think you're going to?

- Must be told. We don't know, it's like mistery (that's the mistery of acid)

-This is Acid, man

This is Acid, maaaaaaaaan....

But it was only a party in a peaceful setting of Sevenoaks in Kent

Which led to the most controversial policing so far

A raid on an Acid House party ended in violence and led to over 20 formal complains against the police

At midnight about 60 policeman arrived, a group of them burst into search for drugs

It was alleged but none of the group were in police uniform

The first thing I saw, well, what I prepared to be was a bunch of hooligans coming charging through the door

With big black sticks flailing in the air shouting: "Get on the f-ing floor you lowlifes!"

-The people, that didn't get on the floor immediately were just beaten on the floor, beaten to the floor

It was incredible, incredibly mindless violence

-They were beating me as they took now, they weren't just roughly handling me and any other policeman

That passed on the way, were taking a good sort of potluck punch of me aswell

-They were manic in there, it just terrified me and everybody who was there was really frightened

Wait, where you think you're going to?

- Must be told. We don't know, it's like mistery (that's the mistery of acid)

-This is Acid, man. This is Acid...

This is Acid, man. This is Acid (repeated)

30-Something years later...