According to Richard Moir, project coordinator for DataDot, these dots are made of tiny particles known as Datadots. Each particle is made of a high tech polyester or metallic substrate, which is between 0,5mm and 1mm in diameter. Any stolen item that is tagged by these Datadots can be identified by the police when it is recovered. The owner of the dotted item's particulars are computerised and the dot will help them be recovered. Each Datadot consists of several microchip spots, each containing a unique code on it that can only be read by specialised DataDot technical laser spotters.
As part of their fight against crime, DataDot trained residents of Thembalethu - who will on their turn visit 2 000 homes in Thembalethu to help the homeowners with applying and registering their Datadots on their valuable items. As part of a free awareness campaign, funding was given to give away 2 000 Datadot packets.
The police will also be trained in the Datadot tracing technique.
In the case of motor vehicles, the 17 digit Vin or Pin number in the case of aftermarket vehicles, is laser-etched onto each Datadot. Ten thousand Datadots are applied to the vehicle with special adhesive. The spray adhesive has UV additives providing easy identification of sprayed areas. Although locating the Datadots is easy, finding all of them for removal is virtually impossible.

Each dot on the Datadot has its own unique code.
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