GOVERNMENT scientists are being sent to the V Festival to analyse samples of so-called legal highs amid renewed warnings about the party drugs.

The Home Office is launching a national campaign highlighting the risks of legal highs including laughing gas.

Scientists from the Government's Centre for Applied Science and ­Technology will go to V Festival in Chelmsford today and tomorrow to examine samples of new psychoactive substances.

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They are aiming to learn which new substances are available in the UK.

Organisers of the V ­Festival have had a ban on legal highs in place for seven years. Chief Inspector Jonathan Hayter, from Essex Police, said: "We want to remind festival-goers that psychoactive substances will not be tolerate."