Government scientists are being sent to the V Festival to analyse samples of so-called legal highs amid renewed warnings against taking the party drugs.
The Home Office is launching a national campaign highlighting the risks of legal highs including laughing gas, which was more widely used than powdered cocaine and ecstasy last year.
They are aiming to gather information about which new substances are available in the UK, and the latest Home Office annual report on the trends is due to be published today.
More top news
A Jack Russell Terrier from California has entered the record books after setting the fastest time to pop 100 balloons by a dog.
A woman who wants to use her dead daughter's frozen eggs to give birth to her own grandchild, has won a Court of Appeal battle.
June closes on a disappointing note