Their protests were diverse, ranging from less packaging in Tesco's to abolishing the monarchy to equal rights for Welsh dragons.

But the real purpose was to highlight the absurdity of an act that only allows state sanctioned protest. Every one protesting today was legal because 2294 individual applications had been processed by the police. To protest without this permission would incur criminal prosecution leading to a penalty - if you were "the organiser" - of up to 51 weeks in jail.

Activists have protested against the act since August 2005 and there have been many arrests and serious and violent police harassment of several targeted individuals. A timeline published and regularly updated by imcistas makes for shocking reading.

Thomas conceived the absurdity of the Mass Lone Protest back in July 2006 but really caught the public's imagination with a BBC radio broadcast earlier this month. As one participant - a first time protester - put it, "it really shows the power of the personality". There's no doubt that actions such as this are bringing the putting this repressive act into a public spotlight.

The danger, conversely is that it can be seen as just a bit of fun. Today might well be hijacked and produced as evidence by Blair's goons that protest is alive and well, and that ordinary decent people are welcome to visit the seat of government and say just about anything they want.

Extremists and terrorists, they'll claim, are the only ones with any reason to fear the law.

Indeed, on 7 April 2002 Blair made a speech to the George Bush Presidential Library.

"When I pass protestors every day at Downing Street, and believe me, you name it, they protest against it, I may not like what they call me, but I thank God they can.That's called freedom."

Remember those words as you check out "extremists" Steve Jago and Barbara Tucker.

In this video Steve is arrested for quoting George Orwell.

And in this video both Barbara and Steve stand outside Downing Street, only to be violently arrested and carted away in front of horrified tourists.

This is the everyday reality of SOCPA. These aren't terrorists, these aren't extremists, they're just ordinary people protesting against things the state won't permit.

Believe me, that's not what you call freedom.