Kendal Calling organisers have confirmed that the independent drugs advice service The Loop will return to the festival this year.
The event in 2016 saw the pilot of a scheme that allows people to seek advice and make informed choices through the testing of substances.
Results are then given to festival-goers as part of a free, confidential information package.
However, there will be extensive measures in place to ensure that drugs taken onto the site are kept to a minimum and that everyone attending the festival is kept safe.
There will also be amnesty bins in place at every entrance.
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Superintendent Justin Bibby, of Cumbria Police, said: “Cumbria Police work closely with the organisers of Kendal Calling to ensure the safety of festival goers, which is our primary concern.
“Following the recent tragic events across the country we will continue our armed presence to ensure that people can enjoy the event and remain confident of their safety. Those attending should not be alarmed by this – we are there to keep you safe.
“To help us do this, we ask that you all take care of yourselves and of each other. Leave valuables at home, be vigilant and report anything you believe to be of concern, and remember that even one experience with illegal substances can be enough to prove fatal.
“Our dog handlers and police dogs will be on site and at all the entry gates to detect and prosecute those who intend on supplying drugs, and urge anyone thinking of bringing drugs into Kendal Calling to not take the risk.
“We want everyone to enjoy the music and the atmosphere of Kendal Calling, and ask you all to do so responsibly.”
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Ben Robinson, festival director, said: “Kendal Calling is a gathering of amazing people coming together to enjoy world class entertainment in the stunning scenery of Lowther Deer Park. Our first priority is the safety and welfare of everyone on site with us for the weekend. We work incredibly hard, with Cumbria Police and all our partners, to provide a safe environment for the entire Kendal Calling family.
“The team that helps us make Kendal Calling happen – Cumbria Police, St John’s Ambulance, the local authorities, our event management, production, security, stewarding and welfare partners – is second to none and we are proud to work with such professionals.
“We ask all our festival-goers to do their bit by looking out for themselves and each other and to help us make it the best Kendal Calling yet.”
Kendal Calling will be held in Lowther Deer Park from July 27-30. Headliners include Franz Ferdinand, Manic Street Preachers, Stereophonics, Brian Wilson and Frank Turner.