While it is not a requirement to have a particular type of car in order to attend, due the nature of the groups, an attendee's car tends to be one of the following:  The criteria for membership to the London Tunnel Runners is stated by the organizers to be one of maturity, respect for others and their property. The runs are organized within a restricted Internet forum to prevent them from being gatecrashed by unwanted parties, who may not have the same core beliefs, and bring the London Tunnel Run into disrepute. There are a number of international members who drive to the UK so they can join the runs. From 2007 onwards, a group of Dutch members have participated in tunnel runs on more than one occasion. They will usually arrive early on a Saturday morning to be met by a number of the UK Tunnel Runners where they may go to an event before the tunnel run. The original group maintains active relations with the Metropolitan Police Service to make sure that inconvenience to the general public is kept to a minimum. Many other groups have been founded since tunnel running has become more popular, as a result of this, some groups who do not maintain the same respect for the law have caused negative feelings towards tunnel runners. To combat this, the London Tunnel Runners liaise with the police before every run, to enable the police to deal with genuine complaints that may be made towards the group, such as the complaint from Islington London Borough Council. "Modified cars racing through east London's tunnels are endangering motorists and making life a misery for residents," stated Poplar and Limehouse Member of Parliament Jim Fitzpatrick. "Up to 400 cars are congregating in Dartford and Essex and racing along a route which covers the Blackwall Tunnel and the Limehouse Link." The Labour MP, who has written to Tower Hamlets Police and the council demanding action on the organised events, also said the cars are using the tunnels at Westferry Circus to regroup and film stunts. He pointed out a YouTube video from 20 October 2012 which saw an estimated 265 Japanese fast cars gather in the roads under the Canary Wharf estate. The MP, who has received numerous complaints from constituents, sent a Twitter message following the 20 October meet which read: "@MissBanzai Well, another #TunnelRun draws to a close. 3hrs from Start to Finish for most, 10 Tunnels, 265 Jap Motors woke up #London, one more time." In late 2006, complaints by Islington London Borough Council led to contact from the police.