Police officers in Uxbridge are taking part in a year-long trial of body-worn cameras.
Officers from two response teams stationed at Uxbridge invited members of the Hillingdon Independent Advisory Group to view new video technology which will 'go live' on Friday 18 July, commencing a year-long pilot.
Hillingdon borough is the second in the Metropolitan Police Service to roll-out the cameras, with the first launch taking place in Camden borough back in May.
Those taking part have been issued with strict guidance about how and when cameras are to be used, to routinely collect evidence in incidents such as domestic abuse and public order but also for potentially contentious interactions such as the use of stop and search.
Two of the officers involved in the pilot, PC Natasha Nugent and PC Pavin Bhourlay told GetWestLondon they were looking forward to using the cameras.
PC Nugent said: "This will show everything which will help us with convictions at court, hopefully more guilty pleas and especially with domestic violence where a lot of the victims withdraw statements, we would still have the evidence there on camera."
She added: "I think it will good for public perception, a lot of people like to criticise the police, so this will show that we will be doing our job properly and I think that will give a lot of reassurance to the public as well."
"It is all about transparency," PC Bhourlay said.
Chief Inspector of Operations, Rob Wilson said: "We welcome this new technology and we anticipate this will help us gain further confidence from the public towards our service and help us deliver and strengthen our fight against crime. Video captures events in a way that can't be represented on paper in the same detail and it has been shown the mere presence of this type of video can often defuse potentially violent situations without the need for force to be used."
The cameras will not be permanently switched on to ensure interactions with the public are not unnecessarily impeded but people will be informed as soon as practical that they are being recorded.
The pilot, thought to be the largest in the world, will see a total of 500 cameras distributed to 10 London boroughs.
Police in Hounslow have been wearing cameras since last Autumn after Hounslow Council gave funding to buy some, those cameras are not part of the official Met pilot, but police chiefs hope rolling them out more widely will help ensure speedier justice for victims, especially in domestic violence cases.
The findings of the year-long pilot will be evaluated by MOPAC and the College of Policing before any decision about a future roll-out is made.
Chief Insp Wilson added: "This will tell us if the positive findings of the earlier trials are replicated on a large scale and provide valuable lessons on the best ways to take the technology forward.
"We are already starting to hear that the use of cameras has contributed to early guilty pleas where offenders know an incident has been recorded. Ultimately this new kit will speed up justice, assist us to put offenders behind bars more quickly and protect potential victims and the wider community."