Was listening to 606 and the West Ham fans that phoned in said there are no police inside the ground for any of their games - think they said there is a dispute about the financing of it. The only police they see is at the tube station.
They also said that this idiot got back into the stands, as the stewards gave up but he was dealt with by the fans.
I'm pretty sure the issue with policing at the Olympic Stadium is down to a requirement to install some electonic gadgetry to facilitate the use of Police radio inside the ground, as their radios don't work properly in there. West Ham's owners have flatly refused to pay for it, saying that it's either down to the police to get their own radios working in there or down to the landlords to stump up the cash to have the required cabling installed.
IIRC, the row is all over something like £100k for the work to be done, which is pocket change for a premier league club, especially one that has had a brand new stadium almost gifted to them for pennies.