We started using the [fencing] system two years ago and since it was introduced, we have had no problems

Terry Burwell RFU operations director

Fans stormed the playing field at Headingley

"On the referee's final whistle, they stand up holding the fencing in front of them. It is similar to that found on construction sites," said RFU community and operations director Terry Burwell.

"We started using the system two years ago and since it was introduced, we have had no problems with post-match pitch invasions."

Nottinghamshire are keen to promote co-operation with Pakistani fans.

Chief executive David Collier said: "We've got Urdu and Punjabi speakers on our public address, we've got posters that we've printed up asking people to assist us.

"The Pakistani community are very enthusiastic about their cricket and we do wish to appeal to them to work with us to maintain safety. "

Local police have urged spectators to use common sense.

"As the police commander, I am aware that contingency plans have been formulated by the club, which involves a much larger number of stewards, and other measures," said Chief Inspector Chris Shardlow.

"The police contingent will be going in support of these measures. However, we are heavily dependent on the goodwill of fans for these plans to work effectively."