I have taken the decision to go with an earlier idea which was a moving & tracking light source.
My reasons for making this choice relate to some of the research material from the police and the feedback from the questionnaires.

Business owners main use for security was to act as a deterrent.
Police records have indicated crime peaking in the darker winter months.

With the most instances of business crime taking place in the evening the logical decision seems to be to generate a product that will have a deterring effect during the evenings, when businesses tend to be unattended.

This is a qucik mock up of what the product could look like as an attachment for a building.

There would be a PIR motion sensor mounted on the bottom of the product which would activate the product when triggered. The light would then switch on and reflect off the mirror which is mounted on an X and Y axis servo.

The small camera would be able to track an intruder within the environment and send the relevant information to the mirror in order to entrap the intruder in light where the only means of escape is to remove themselves from the environment.