British Police told that it is too dangerous to go to playgrounds at night

From the UK Mail:

In the line of duty, police officers routinely risk life and limb in all sorts of dangerous situations to protect and serve.
So patrolling an area plagued by teenage yobs should be child’s play by comparison.
But constables and PCSOs have been banned from keeping the peace at an adventure playground at night because it is considered dark and dangerous.
A senior officer told stunned councillors there would be no patrols after 8pm at newly-built Waterlees Park in Wisbech, Cambridgeshire, for health and safety reasons. . . .