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SelectaDNA Defence Spray

Proven technology to convict criminals

SelectaDNA Defence Spray is a compact, easy to use offender marking spray used to deter and prevent personal attack.
Promoting the use of the SelectaDNA Defence Spray will form a deterrent to criminal incidents, attacks on your staff and crimes on your premises and property.
The handheld Defence Spray is Police-approved and emits a harmless, colourless solution that is invisible to the naked eye and therefore does not heighten tension at the scene of an incident.

How it works

The Defence Spray works by spraying the offender with an invisible solution of unique synthetic DNA code and UV marker that clings to skin and clothing for months.
The unit is operated with one hand. Using your thumb or forefinger and holding in an upright position, a quick press of the canister will release a jet of clear liquid that will reach up to a distance of 4 metres. The device holds approximately 14 spray bursts of 0.5 seconds each.

Suitable applications

SelectaDNA Defence Spray is an ideal piece of equipment for Police Community Support Officers, professionals in the security industry, people employed in vulnerable positions of responsibility (such as hospital staff, taxi drivers, door staff and shop keepers) and victims of domestic violence.
It allows them to discreetly mark and identify the offender, providing legal evidence that can link them to the scene of a crime, without stepping outside the boundaries of their role.

Identifying the offender

The solution contains a unique DNA code that is registered to the user and location. Police use an ultraviolet light to locate marked areas of skin and clothing, immediately linking the offender to a crime scene.


Please note: Essential training is required by all users. This is provided by Selectamark Security Systems plc. This product can only be purchased by an accredited organisation whose users have gone through the Police approved Secured by Design Approved training course. Contact the SelectaDNA Sales office on 01689 860757 or for more information.



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A replacement aerosol for use with the SelectaDNA Defence Spray Kit.

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A highly visible component of the SelectaDNA Defence Spray Kit