A WARNING has been given about so-called ‘legal highs’ after the discovery of a stash of empty ‘laughing gas’ canisters in West Craven.

Police were alerted to around 30 discarded nitrous oxide containers, left at the picnic site at the top of Stoney Bank Road in Earby.

MORE TOP STORIES:

An investigation has been launched amid concerns that the cannisters may have been discarded out of the window of a passing car.

A spokesman for Colne and West Craven Police said: “It’s frightening to think that the driver would have been under the influence of this drug as he or she was driving, particularly as side affects include difficulty in thinking straight, hallucinations and sound distortion.”

It is not illegal to possess nitrous oxide, thought it is illegal to supply the gas to under-18s.Once taken it induces a temporary feeling of euphoria and a relaxed state.

But users run the risk of oxygen deprivation particularly in a confined space.

Anyone with information regarding the supply of these cannisters or concerns regarding their use should contact their local neighbourhood policing team added the spokesman.