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A crime scene technician wearing white overalls and latex gloves collects evidence from a lawn with some tweezers
A crime scene technician wearing white overalls and latex gloves collects evidence from a lawn with some tweezers
A finger print with residue lifted using sticky tape
A tracking German shepherd dog catching a scent
A bronze coloured bullet casing with measuring rulers for scale
Previews of the Breathalyser reaction student worksheet, teacher and technician notes on a blue background