correspondent anastasia churkin up. the british capital has been a new stranger to close circuit television surveillance or c.c.t.v. for decades with a history of terrorist attacks and crime c.c.t.v. is a fixture that most are long used to but along with their increasing numbers and scope of capabilities questions about the extent to which the watchful lenses have become a part of everyday life is often a hot topic a huge spike in numbers took place recently over seventy percent in the period between twenty twelve to twenty fifteen london is said to have more c.c.t.v. cameras than anywhere else in europe and some sources have even suggested that this is true compared to any other city on the planet and twenty seventeen there were understood to be half a million cameras in the british capital it's been estimated that by twenty twenty that number will be at over six hundred and forty thousand now according to the british security industry authority there is roughly one camera for every fourteen people here you have ridge