He said the tout "exclusion zone" will be enforced in and around Earls Court Underground station. "We are expecting 20,000 fans at each concert.
"Crowd control is a concern and we want to send the message to people who haven't got a ticket that there is no point turning up. We will be arresting ticket touts before each concert under a British Rail bye-law."
They would be held until after the concert and released after a caution. "They face losing money by not being able to sell the tickets," Sgt Sutton said.