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Secondly, it is quite common to include other elements into this type of survey, which may actually have very little if anything to do with security.

By way of an example, the escalator in a department store is unlikely to be the scene of any criminal activity, perhaps ‘dipping’ (a slang term for how a pick pocket works) is a possibility, but there is every likelyhood that a suspect will use this route to move around the building, and of course, there is always the risk of injury from someone falling (or indeed being pushed) on this moving walkway.

In this context, monitoring a wide area for a crime is simply not warrented, but using a 'spot' camera for recording can benefit both identification of individuals and 'Health & Safety' issues.
Escalators do after all provide an ideal location for producing close up Evidential Quality Recordings (EQR), particularly for facial recognition.
 

The Risk Assessment Survey (RAS) is in some respects the key to designing an effective Closed Circuit Television system.
 

If you can successfully identify where the risks lie, and their precise nature, it becomes much easier to configure a CCTV system to take account of these potential problems.
 

As part of the RAS, it is crucial to identify ‘pinch points, gateways or portals’ which individuals have to pass through, within the site.
 

In practice, short of driving through a brickwall with an excavator (ram-raiding is in itself a viable risk in certain types of premises), the main access points to the site, or internal ‘gateways’ which individuals have to pass through, are ideal locations for configuring passive CCTV equipment to provide Evidential Quality Recording.
 

Having completed the comprehensive Crime Audit (CA) and Risk Assessment Surveys (RAS), the next step, which Doktor Jon likes to think of as the missing link, can be undertaken; this is the development of the CCTV System Profile (SP).

This is actually the point where the system design begins to get .... just a little bit more interesting!

Developing a CCTV System Profile >>>

<<< Developing an appropriate Crime Audit - parts 1 & 2

Step 2 - The Risk Assessment Survey (RAS)

So in terms of Video Surveillance (CCTV) System Design, what is the relevance of further assessment, and how exactly do you carry out a Risk Assessment Survey (RAS)?

Well, there are in effect two aspects to this part of the CCTV system planning stage.

Firstly, by using the Crime Audit (CA) as a basis for referal, it is possible to identify key points or locations which may be more prone to a particular type of crime or incident.

As with the Crime Audit, it is decidedly sensible to address both a ‘global’, ‘macro’ and 'micro' approach to this assessment.