Civil liberties and privacy campaigners say that more than £3.9 million has been spent by public bodies across the country in the last two years on paying private investigators for surveillance work - including snooping on their own staff.
The Big Brother Watch study found 27 local councils nationally had employed private firms to undertake surveillance - ten of which are in London.
Hammersmith & Fulham
Kensington & Chelsea
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Gold was sent a seemingly harmless tweet by a Hammers fan asking him to support his young brother who has just started a new school.
Salim Coulter was shot in the head by a gunman believed to have been lying in wait for him as he returned from the restaurant.
Kelly Kepple told police she was paid £65 a week to hide the deadly weapon that she chose to store near where the youngster slept.