The `` Isle of Wight Council Act '' states there should n't be less than 5,000 people present in a gathering .
The unexpectedly high attendance levels led , in 1971 , to Parliament passing the `` Isle of Wight Council Act '' preventing 'An assembly to which this section applies is an assembly in the county in the open air at which during any period exceeding three hours during the six hours following midnight there are not less than 5,000 people present ' .
Isle of Wight Festival