In practice: Jump Westminster, Positive Futures

Mission: To use the sport of parkour to engage at-risk young people and tackle the no-ball-games culture in London

Funding: 250,000 a year, 84,750 from the Home Office and the rest from local sources

Westminster Positive Futures started teaching parkour to young people in spring 2006, and so far more than 500 young people have taken up the dynamic sport.

Also known as free running, parkour developed from French military physical training and was initially made famous by exponents in Paris. Parkour experts' gravity-defying leaps and bounds across the urban landscape are now commonly seen on TV and cinema screens.

Those running the Westminster scheme hope to give young people an enjoyable outlet for their energy that will improve their fitness and help to channel them away from crime.