selectadna is used to ‘tag’ valuable property, infrastructure and criminals and is available in a number of formats including vehicle marking solutions (combining dna and microdot technology), defence sprays to deter anti-social behaviour and moped-enabled crime, selectadna trace for metal protection and intruder sprays for robbery prevention and transport protection. formats for covert operations include transferable gels, grease and trespass beads. selectadna not only reduces crime but also enables police to link criminals to crime scenes and secure convictions.