SHIPSTON police say it's no laughing matter after nitrous oxide cannisters were found in the district.

In recent weeks police had received two reports from residents who have found small, empty metal canisters in public areas of Long Compton and Shipston. The canisters had contained nitrous oxide, commonly called 'laughing gas'.

Nitrous Oxide is a gas with several legitimate uses, but when inhaled it can make people feel euphoric and relaxed. This happy feeling led to it being coined 'laughing gas' though some people also experience hallucinations. However, there is a risk of death as a lack of oxygen can occur when using nitrous oxide.

"As well as highlighting the dangers of nitrous oxide inhalation this alert is to draw attention to the style of canisters used. If you are a parent who suspects their child to be in possession or using these items please contact your local policing team on 101 for further advice. If you see any of these canisters discarded please contact your local policing team so that they can build up a picture of where they are being used. Anybody living within the Shipston Police SNT area can call us directly on 01789 444670," said PC Craig Purcell, of Shipston Safer Neighbourhood Team.

Nitrous oxide can cause dizziness or affect your judgement, which might make you act carelessly or dangerously and put you at risk of hurting yourself, particularly in an unsafe environment.

Other risks include: unconsciousness or death from lack of oxygen. Heavy regular use of nitrous oxide can lead to deficiency of vitamin B12 and to a form of anaemia. The severe B12 deficiency can lead to serious nerve damage in some cases, which causes tingling and numbness in the fingers and toes and other extremities, and even difficulties with walking and pains in affected areas. Regular use may also depress formation of white blood cells.

It can be hard to judge the amount to use safely. If you have too much you can end up fainting, having an accident or much worse.

Mixing nitrous oxide with alcohol is especially dangerous as it can increase the risks associated with both substances and can lead to an increased risk of accidents or death.