The video shows the failure of police to display their numbers, something which is extremely important in making sure police are accountable for misconduct.

The video is here: http://vimeo.com/17174532

The video was filmed at the anti-cuts demo on the 24/11/2010

Here are points 8 and 9 of the Home Affairs Committee reccomendation in response to the policing of the G20 protests, along with the governments response which was published on the 27/01/2010:
(The full publication is here: http://www.publications.parliament.uk/pa/cm200910/cmsel...1.pdf)

8.
We echo Sir Paul Stephenson’s comments: in many ways the problem for the police in these situations is not their actual actions, but the perception that they are seeking to avoid accountability for these actions. We are therefore surprised that the problems of identification posed when officers change into protective equipment have not been addressed before and recommend more funding specifically for solutions in this area. (Paragraph 22)

9.
Senior officers must take personal responsibility for ensuring that all officers are displaying their identification numbers and the individual officer must be provided with enough numbers so that these can be worn at all times and on all equipment. It would be helpful if the Home Office and Metropolitan Police would let us know the length of time it takes between the ordering of a new identification badge and this badge being delivered to the individual officer. It is unacceptable for officers not to wear identification numbers at such events; this must be a matter of the highest priority. We urge that any officers found to be deliberately removing their identification face the strongest possible disciplinary measures and the police must make every effort to be identifiable at all times. (Paragraph 23)

(Government's response):
The Government strongly endorses the conclusions of all the reviews into policing of protest that uniformed police officers should be identifiable at all times by their shoulder identification numbers. The public has a right to be able to identify any uniformed officer who is performing their duty. As the Home Affairs Committee Report recognises this is wholly endorsed by the MPS and by ACPO.
Display of numerals is one of the areas that the Policing White Paper flags as requiring particular attention in revised training and guidance. ACPO has already issued interim guidance reinforcing the importance of the identification of officers, and the MPS has included specific reference in all briefing for the need for officers to display numerals.
Most officers have metal numerals, which are issued without delay—but may come unattached following heavy contact. Specialist public order officers have embroidered numerals, which take between four and six weeks to order. However, metal numerals are used during the interim period. MPS officers are issued with two pairs of both.