More than 40,000 people are expected to descend on Christchurch Park for the event, from midday to 8pm on Sunday.

As well as advising festival goers to make extra time for their journey and consider using public transport, police are reminding people to consider their personal safety and remain vigilant against theft and other crimes.

Superintendent Jon Dodman, head of specialist operations, said: “We are expecting the day to be a fun festival with many families attending.

“Public safety is paramount, especially when you have large crowds. We want people to have a safe and enjoyable time, taking into consideration the advice we are issuing.”

People are urged to keep valuables with them at all times, to not take large sums of cash, lots of credit or debit cards, and to not leave anything in vehicles if arriving by car.

Officers are also asking people to be aware of the activities of other people during performances, to wear bags with shoulder straps across your chest with the fastening towards your body, to keep mobile phones secure, and to stick with friends, moderate alcohol consumption, keep hydrated and wear suitable clothing for the weather forecast.

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