Beyond methamphetamine. Our multi-drug analytical panel detects the full spectrum of illicit substances including MDMA, cocaine, cannabis, opiates, GHB, ketamine and precursor chemicals — giving you a complete picture of property contamination.
Drug residue testing is the scientific analysis of surface samples to detect residues left behind from illicit drug use, handling, or manufacturing within a property. While methamphetamine testing focuses on a single substance, drug residue testing applies a broader analytical panel to identify the full spectrum of illicit substances that may be present.
Illicit drug use leaves detectable chemical residues on surfaces including walls, ceilings, carpets, benchtops, and soft furnishings. These residues can persist for months or years after the activity has ceased. Methamphetamine is the most common and most regulated substance, with Australia's residential guideline set at 0.5 micrograms per 100cm squared. However, properties used for drug dealing or poly-drug use may harbour residues from multiple substances that a methamphetamine-only test would never detect.
Multi-drug residue testing provides a comprehensive contamination profile that reveals not just whether drugs were present, but the nature and extent of drug activity at the property. This broader picture is essential for landlords, property managers, insurers, and purchasers who need to understand the full history of a property.
A property that tests negative for methamphetamine may still harbour residues from other illicit substances. If you suspect general drug use or dealing activity, a multi-drug panel provides the comprehensive evidence you need.
8+ substance categories in a single analytical run
Arms-length from laboratories, cleaners, and remediators
Dan Neil MRACI CChem, DAppSc, AIOH, 24+ years
Accepted by insurers, courts, and regulatory bodies
Our multi-drug analytical panel covers the major classes of illicit substances encountered in Australian properties, plus precursor chemicals that indicate manufacturing activity.
Most common contaminant. Australian guideline: 0.5 ug/100cm2. Residue from smoking, handling, or manufacturing.
3,4-methylenedioxymethamphetamine. Detectable surface residue from use and handling. Increasingly common in share houses.
Including crack cocaine residues. Persistent surface contamination from use and handling, particularly on hard surfaces.
Increasingly relevant as legalisation discussions continue. Detectable residue from smoking, particularly in enclosed spaces.
Heroin, morphine, codeine. Surface residues from use and handling. Indicator of serious drug activity at the property.
Gamma-hydroxybutyrate. Detectable as surface residue, particularly relevant for properties associated with party or club drug use.
Dissociative anaesthetic with persistent surface residues. Often found alongside other party drugs in contaminated properties.
Pseudoephedrine, iodine, red phosphorus. Manufacturing indicators that point to drug production, not just use.
Multi-drug residue testing is recommended whenever there is reason to suspect general drug use, dealing, or manufacturing activity beyond methamphetamine alone.
When tenants vacate and there are signs of drug use or antisocial behaviour, multi-drug testing provides the evidence needed for bond claims, insurance claims, or legal proceedings. A meth-only test may miss other substances entirely.
Short-term rental properties see high guest turnover and party use. Multi-drug testing after suspected incidents provides a comprehensive contamination record and supports insurance or platform dispute claims.
When a property owner has passed away and the estate needs to be sold, multi-drug testing can provide assurance to purchasers and satisfy disclosure obligations. This is particularly relevant where the deceased was known to have substance use issues.
Social housing providers require comprehensive contamination data to assess properties between tenancies. Multi-drug testing informs remediation decisions and protects the health of incoming tenants.
Insurers increasingly require comprehensive drug residue evidence when processing contamination claims. Multi-drug results demonstrate the full scope of contamination and support accurate claim assessments.
When strata committees or body corporates suspect drug activity in a unit or common area, multi-drug testing provides objective evidence. Results can support by-law enforcement actions and protect other residents.
After police execute a drug-related search warrant, the property may harbour residues from multiple substance types. Comprehensive testing establishes the full contamination profile and informs the appropriate remediation scope.
The same rigorous NIOSH-based surface sampling methodology used for methamphetamine testing, with a broader analytical panel targeting multiple substance classes.
Discuss property history, suspected activity, and determine the appropriate analytical panel and sampling locations for your situation.
NIOSH-based wipe sampling across 100cm2 areas at representative locations throughout the property, following chain of custody protocols.
GC-MS analysis at an independent NATA-accredited laboratory targeting the full multi-drug panel. Same laboratory rigour, broader analytical scope.
Chartered Chemist interpretation of results including contextual analysis, source determination where applicable, and actionable recommendations.
Methamphetamine has a clearly defined Australian residential guideline of 0.5 micrograms per 100cm squared. For other illicit substances, there are currently no equivalent numerical thresholds in Australia. This makes expert interpretation critical.
For drugs other than methamphetamine, results are assessed on a detection versus non-detection basis and interpreted contextually by our Chartered Chemist. The concentration, distribution, and combination of substances detected across the property tell a forensic story about the nature of drug activity.
The presence of multiple drug types within a single property may indicate drug dealing activity rather than personal use alone. Detection of precursor chemicals such as pseudoephedrine, iodine, or red phosphorus strongly suggests manufacturing activity. Our source determination expertise applies to multi-drug scenarios just as it does to methamphetamine-only assessments.
Independent laboratory analysis with full chain of custody documentation
Gas Chromatography-Mass Spectrometry for definitive identification and quantification
Full sample tracking from collection through analysis to reporting
No conflicts of interest with laboratories, cleaners, or remediators
Comprehensive multi-drug residue testing services available in all major cities and regional areas.
Ready to get started, or want to understand what's involved? Contact us to request a fee proposal or arrange an assessment. We do not provide free telephone consultations — all advice is based on site assessment and laboratory data.
Go beyond methamphetamine with a full multi-drug analytical panel. Get the complete contamination picture from Australia's trusted forensic testing specialists — interpreted by a Chartered Chemist with 24+ years experience.
