two teenagers and a 30-year-old man were held after police pulled over a car and found large canisters of the substance inside. Nitrous oxide, also known as laughing gas, was made into a Class C ...

A ban on the sale and use of laughing gas ... sold in small metal canisters, nitrous oxide is a colourless gas used as a propellant - for example, in whipped-cream dispensers.

A ban is urgently needed to stop people buying and misusing laughing ... metal canisters, nitrous oxide is a colourless gas used as a propellant - for example, in whipped-cream dispensers.