Jim Davidson said he is "pleased there'll be no further action."
"The police have been very thorough. I have no complaints about the police whatsoever," he said.
"I don't think the police are looking for conviction. They are just looking for the truth."
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The band announced at a free concert on Friday that they would take over the event's Pyramid stage on Saturday June 25.
The victims were collecting permits and escorts a day after their home town was liberated from the extremists.
Scotland Yard said the male youths will appear in custody at Westminster Magistrates' Court on Saturday.