If the cap fits - you're a London 2012 games maker. Up to 70,000 Olympic and Paralympic Games volunteers are donning their uniforms for the first time, which will enable them to work at the Games.

Between May and September the Uniform Distribution and Accreditation Centre (UDAC) will process 400,000 staff and volunteers, who will wear identical outfits in the summer.

Per hour, 800 people can be accredited and 280 can pick up their uniforms. That is a lot of enthusiastic volunteers to get through.

So with thousands of people going through the doors at the centre in east London, the BBC looks at how to get from changing room to checkout.

The UDAC centre is a far cry from the splendour of the Olympic Stadium: it is simply a brick warehouse with London 2012 flags outside.

Only security staff on the door give the indication that something important could be happening inside.

The Games Maker journey begins in the accreditation hall where other volunteers and members of staff from the UK Border Agency validate documents and check identities.

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