What is ‘invisible theft detection powder’ and how is it used by the police in drug offences?

At times, the Australian Federal Police may undertake controlled operations to investigate organised crime syndicates, such as in cases of drug importation.

One technique includes intercepting packages of illicit drugs. The item is then substituted with an inert substance to resemble the original. During reconstruction, light sensitive powder (‘phosphorescent powder’) is applied to the item.

The idea is when the recipient touches the item, the invisible powder sticks to their hands and upon arrest, police can apply a UV light to prove circumstantially that the person has touched it.

There are flaws with this. Generally, the powder is very fine and extremely transferable. The powder sticks to almost anything, as it is meant to do. Also, a variety of household substances may also react to UV light, such as detergent, toothpaste, tonic water, human fluids, vaseline, and olive oil.

Our experienced criminal defence lawyers have won cases based on arguing against this type of evidence.  Call our Brisbane criminal lawyers to discuss your case further. We act in all courts in Queensland.