1. Home
  2. Illicit drug testing
  3. Precursor chemical testing

Precursor chemical testing

Precursors are the chemicals drugs are made from. Finding them is one of the clearest signs a property was used for manufacture, not just use.

Short answer

Precursor chemical testing samples a property for the raw materials of illicit drug manufacture: pseudoephedrine, ephedrine, phenylacetone (P2P), phenylacetic acid (PAA) and methylamine for methamphetamine, and MDP2P, safrole and piperonal for MDMA. Their presence points to a clandestine laboratory and shapes the remediation scope.

Meth precursors
Pseudoephedrine, ephedrine, P2P, PAA, methylamine
MDMA precursors
MDP2P, safrole, piperonal
Indicates
Manufacture
Used for
Clan lab assessment

About precursor chemical residue

ChemicalAssociated withNotes
Pseudoephedrine and ephedrineMethamphetamineExtracted from cold and flu medicines, now tightly controlled
Phenylacetone (P2P)MethamphetamineUsed in the P2P route of manufacture
Phenylacetic acid (PAA)MethamphetamineA starting material for P2P
MethylamineMethamphetamineReagent in the P2P route
MDP2PMDMADirect MDMA precursor
SafroleMDMAOil used to make MDP2P
PiperonalMDMAAlternative MDMA precursor

Where we sample and why

We target precursors in areas where cooking, extraction or waste disposal is likely: kitchens, laundries, bathrooms, sheds, drains and outdoor dump sites. Results help a remediator plan for more than just drug residue, since manufacture can leave solvents, acids and other chemicals too.

How we test

  1. We discuss the history of the property or vehicle and agree which substances to target.
  2. A technician takes measured wipe samples from high-risk and general surfaces, photographing each location.
  3. Samples go to a NATA accredited laboratory under chain of custody for targeted analysis.
  4. Our hygienist interprets the results and you receive a report with locations, results and next steps.

Multiple drugs can be tested from one visit. Methamphetamine sampling is covered by our NATA accreditation (No. 20837). For substances without a specific Australian residential guideline, results are interpreted against the national clandestine laboratory guidelines and the circumstances of the property.

Last reviewed October 2026 by the EnviroForce team

Common questions

Straight answers to the questions people ask us, and ask AI assistants, most often.

Why test for precursors as well as meth?

Meth alone can come from smoking. Precursors point to manufacture, which usually means higher and more widespread contamination and a bigger remediation job.

Are precursor chemicals dangerous?

Many are toxic or corrosive, and manufacture can leave other hazardous chemicals behind. Treat any suspected lab as a hazardous site until it has been assessed.

Do you clean or remediate meth-contaminated properties?

No. We only sample and test, which keeps our results independent. If remediation is needed, your report gives the remediator a clear map of what to treat, and we can carry out validation testing afterwards to confirm the property is below the guideline.

How do I book a meth test?
Book online or call 1300 373 785. Tell us the address, property type, number of rooms and why you are testing (sale, purchase, tenancy, insurance or a concern), and we will recommend the right assessment and confirm a time.

Book NATA accredited sampling.

Book online or call 1300 373 785. Technicians in every state and territory, with urgent bookings taken 24/7.