Three outlets in Huddersfield are continuing to sell the drug Spice, police have revealed.

And the news comes just hours after a man apparently tried to walk onto the ring road on Thursday afternoon while under the influence of the so-called legal high.

He was one of two men who had to be taken to hospital after taking the synthetic cannabis drug after an incident in front of Kirklees Magistrates’ Court in Upperhead Row, Huddersfield.

Police and ambulance crews were called to the scene on Thursday afternoon after a melee involving up to 30 people.

Police are still investigating.

The drug, which is sold under more than 500 names including Mojo, Scooby Snax, Black Mamba and Annihilation, can cause hallucinations, severe anxiety and paranoia.

Below is a video of the effects of Nitrous Oxide or 'hippy crack'

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PC Leon Stansfield of Kirklees Licensing said he was “quite surprised this happened at the courts”

He added: “At the moment Spice comes under ‘legal highs’ and there’s no legislation in place until April 1 preventing its sale.

“However, it’s illegal to sell it to anyone under the age of 18.”

READ MORE: Police called and two taken to hospital after 30 men and women fight outside Kirklees Magistrates' Court

READ MORE: Police set to crack down on legal "highs" in West Yorkshire

And for anyone selling these drugs to adults over the age of 18 he said: “They must be advised that it is not for human consumption.

“All three outlets in the Huddersfield area who we know openly sell them have been warned as to the law which will change on April 1 to make their sale illegal.”

When that day arrives he said letters would be sent out to those establishments warning them of what was happening.

PC Stansfield added: “We have had a further three to four establishments who have stopped selling these drugs.

“We have been quite ‘heavy’ on these places and there were a number of outlets who stopped selling once we advised them if anything happened to someone they could be liable.”

Although Spice is often perceived as a relatively harmless mixture of herbs PC Stansfield said it was anything but given that it can be made anywhere.

“What we say to people selling it is: ‘Do you know what’s in there?’ It’s a concern.”