So, the argu­ment about CCTV and our big broth­er soci­ety rumbles on. A seni­or police­man, Detect­ive Chief Inspect­or Mick Neville of the Visu­al Images, Iden­ti­fic­a­tions and Detec­tions Office (Viido) at New Scot­land Yard, has been quoted as say­ing that only 3 per cent of crimes have been solved by CCTV evid­ence. Des­pite the UK hav­ing the highest per cap­ita num­ber of CCTVs in the world, this brave new world has failed to make us safer.

A few oth­er police forces, and nat­ur­ally the secur­ity com­pan­ies flog­ging the kit, say that CCTV has at least dra­mat­ic­ally reduced oppor­tun­ist­ic crimes. Who should we believe?

What can­not be dis­puted is the fact that there are well over 4,000,000 CCTVs in this coun­try, and the organ­isa­tion, Pri­vacy Inter­na­tion­al, assesses that we are the most watched cit­izenry in Europe.

While some law-abid­ing cit­izens say they feel intim­id­ated by CCTV and how the inform­a­tion could poten­tially be mis­used, most people seem not to care. In fact, the major­ity appar­ently feel safer if they can see CCTV on the streets, even if this per­vas­ive sur­veil­lance has in no way dis­cour­aged crimes of viol­ence. So why this gap between per­cep­tion and reality?

One of my pet the­or­ies has always been to blame Big Broth­er. No, not the book. I have always been flum­moxed by the pop­ular­ity of the TV show and the pleth­ora of real­ity TV spin-offs. My instinct­ive reac­tion was that it was sim­il­ar to being “groomed” to accept round-the-clock intru­sion into our per­son­al lives. More than accept – desire it. The clear mes­sage is that such sur­veil­lance can lead to instant fame, wealth and access to the Z‑list parties of Lon­don. And for that we are sleep-walk­ing into a real Orwellian nightmare.

Slightly flip­pant the­or­ies aside, it is inter­est­ing that one of the most cited examples of the need for CCTV was the Bish­opsgate bomb­ing in Lon­don in 1993. In this case a lorry bomb, filled with a tonne of home made explos­ive (HME) was det­on­ated in the heart of the city of Lon­don by the IRA. One per­son was killed, many were injured, and hun­dreds of mil­lions of pounds worth of dam­age was caused, not to men­tion the fact threat the IRA scored a huge pub­li­city coup.

But this had noth­ing to do with the lack or oth­er­wise of CCTV in the streets of the City. It was an intel­li­gence fail­ure, pure and simple.

This attack could and should have been pre­ven­ted. It occurred while I was work­ing in MI5, and it was widely known in the ser­vice at the time that the bomber should have been arres­ted six months before dur­ing a sur­veil­lance oper­a­tion. Des­pite the fact that he was seen check­ing out anoth­er lorry bomb in stor­age, he was allowed to walk free and escape to the Repub­lic of Ire­land due to pro­ced­ur­al cock-ups. Months later, he returned to the City and bombed Bishopsgate.

By rely­ing increas­ingly on tech­no­lo­gies to pro­tect us, we are fol­low­ing in the foot­steps of the Amer­ic­ans. They have always had an over-reli­ance on gad­gets and giz­mos when seek­ing to invest­ig­ate crim­in­als and ter­ror­ists: satel­lite track­ing, phone taps, bugs. But this hoover­ing up of inform­a­tion is nev­er an adequate replace­ment for pre­cise invest­ig­at­ive work. Plus, any crim­in­al or ter­ror­ist worth their salt these days knows not to dis­cuss sens­it­ive plans electronically.

Scat­ter-gun approaches to gath­er­ing intel­li­gence, such as blanket sur­veil­lance, still at this stage require human beings to pro­cess and assess it for evid­en­tial use. That, accord­ing to DCI Neville, is part of the prob­lem. There is just too much com­ing in, not enough staff, insuf­fi­cient co-oper­a­tion between forces, and the job lacks per­ceived status with­in the police.

The oth­er prob­lem of an over-reli­ance on tech­no­logy is that it can always be hacked. The most recent hack­ing has broken the RFID chips that we all carry in our pass­ports, Oyster cards and the planned ID cards. New tech­no­lo­gies can­not guar­an­tee that our per­son­al data is secure, so rather than pro­tect­ing us, they make us more liable to crimes such as iden­tity theft.

So once again nation­al and loc­al gov­ern­ment bod­ies have rushed to buy up tech­no­logy, without fully think­ing through either its applic­a­tion or its use­ful­ness. And without fully assess­ing the implic­a­tions for a free soci­ety. Just because the tech­no­logy exists, it does not mean that it is fit for pur­pose, nor that it will make us safer.