03:05AM, Thursday 09 February 2012
The stills were taken from a camera in a hotel in Aylesbury where some of the men fled after the attack at Fantasy Fine Line in St Mark's Road on April 11.
Anthony Cooke, Leon Dorman and Drizz James can all be seen on the CCTV footage, having left Maidenhead in a taxi following a failed attempt to leave the town in a getaway car.
The driver of the car, Joseph Gentle, is not seen on CCTV as he made his own way home after abandoning the vehicle in Vicarage Road.
The 29-year-old from Luton, who travelled to Maidenhead with the gang but did not enter the tattoo parlour, will be sentenced at a later date.
Baljit Ubhey, chief crown prosecutor for Thames and Chiltern Crown Prosecution Service (CPS) said: "This case involved people who were conducting themselves in a lawless way and involved drugs, serious violence and robbery.
"This was a very complex case to prosecute and I applaud the prosecution team for their hard work and determination.
"Today's sentences will demonstrate to these individuals that the way they were conducting themselves will lead to lengthy prison sentences. Hopefully, the sentences will also act as a deterrent to others that this kind of behaviour is simply not acceptable."
Read the Advertiser's reports of how the trial unfolded:
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A group of 12 people have been sentenced in relation to their involvement in a drugs network operating in Slough and Maidenhead.