Drug and Alcohol Testing in Australian Family Court

When courts order testing

The court may order drug or alcohol testing when there are credible allegations that a parent's substance use poses a risk to their child's safety and wellbeing. Testing is not ordered as routine — there must be an evidentiary basis for the allegation.

Allegations of substance abuse

Where one parent alleges the other has a drug or alcohol problem that affects their parenting capacity, the court may order testing to obtain objective evidence. Allegations alone are insufficient — supporting material such as police records, hospital admissions, or witness statements strengthens the basis for an order.

Best interests and the safety factor

Under section 60CC, safety is the first listed consideration when determining the child's best interests. Substance abuse directly engages this factor. The court must assess whether the child would be exposed to harm — including neglect, impaired supervision, or volatile behaviour — arising from a parent's substance use.

Interim vs final hearing testing

Testing may be ordered at the interim stage to inform temporary arrangements while proceedings are ongoing, or as part of evidence preparation for a final hearing. Interim testing is common when urgent safety concerns exist and the court needs immediate information to make protective orders.

Self-initiated testing

Parents facing allegations of substance abuse may voluntarily undertake testing before the court orders it. Self-initiated testing through a NATA-accredited laboratory demonstrates proactive engagement with the issue and can provide powerful evidence of sobriety. This approach is particularly effective when combined with ongoing random testing over several months.

Types of drug tests

Different drug tests serve different purposes in family court proceedings. The type ordered depends on what the court needs to determine — recent use, patterns of use over time, or both.

Hair follicle testing — gold standard

Hair follicle testing is the most commonly relied-upon method in family court because it provides a long-term record of drug use. As hair grows at approximately 1 centimetre per month, a 3-centimetre sample covers roughly 3 months. Longer samples can extend the window to 12 months.

• Strengths: Detection window of 3–12 months; difficult to cheat or tamper with; reveals patterns (chronic vs occasional use); widely accepted by courts.
• Limitations: Cannot detect very recent use (last 7–10 days); external contamination possible (though labs test for this); requires sufficient hair length; higher cost than urine screening.

Urine drug testing

Urine testing detects recent drug use, typically within 1 to 7 days depending on the substance. It is useful for random or frequent testing programs but provides limited information about long-term use patterns.

• Strengths: Lower cost ($50–$150); quick results (often same day); effective for random testing programs; wide range of substances detected.
• Limitations: Short detection window (1–7 days); can be diluted or substituted; does not show patterns of use; single snapshot in time.

Blood testing

Rarely used in family court due to its very short detection window (hours to days). Blood tests detect drugs currently in the system and are more commonly used in emergency or medical settings. Detection window: hours to a few days depending on substance.

Oral fluid / saliva testing

Detects recent use within 24 to 48 hours. Often used as a preliminary screening tool. Less invasive than blood testing but offers a similarly narrow detection window. Detection window: 24–48 hours for most substances.

Nail testing

Fingernail and toenail testing works on a similar principle to hair testing. Substances are incorporated into the nail as it grows, providing a detection window of 3 to 6 months for fingernails and up to 12 months for toenails. Nail testing can serve as an alternative when head and body hair are unavailable.

Types of alcohol tests

Alcohol testing in family court presents unique challenges because alcohol is metabolised quickly. Specialised tests have been developed to detect alcohol use over longer periods, giving courts a more complete picture of a parent's drinking patterns.

Hair alcohol testing (EtG in hair)

Hair alcohol testing measures ethyl glucuronide (EtG), a direct metabolite of alcohol, incorporated into hair as it grows. This test provides a 3 to 6 month window of alcohol consumption history and can distinguish between social drinking and chronic heavy use. It is increasingly favoured by courts for its reliability and extended detection period. Results are typically reported against established cut-off levels endorsed by the Society of Hair Testing.

Liver function tests (blood markers)

Blood tests measuring liver enzymes and specific biomarkers can indicate chronic alcohol use. These are often ordered as part of a comprehensive assessment.

• GGT (Gamma-Glutamyl Transferase): Elevated GGT levels can indicate heavy alcohol consumption over weeks to months. However, GGT can also be elevated by medications, liver disease, or obesity — limiting its reliability as a standalone test.
• CDT (Carbohydrate-Deficient Transferrin): CDT is a more specific marker for chronic heavy alcohol use. Elevated CDT typically indicates sustained heavy drinking over at least two weeks. It is less affected by non-alcohol factors than GGT, making it more reliable.

EtG urine test

The EtG (ethyl glucuronide) urine test detects alcohol consumption for up to 80 hours after drinking — far longer than a standard breathalyser. This makes it useful for random testing programs where the goal is to detect any alcohol use between scheduled tests.

SCRAM bracelet

The SCRAM (Secure Continuous Remote Alcohol Monitor) bracelet is worn on the ankle and continuously monitors for alcohol consumption through transdermal testing every 30 minutes. It provides the court with real-time, tamper-resistant evidence of sobriety — detection is continuous, 24 hours a day, 7 days a week.

Testing costs

The cost of drug and alcohol testing varies depending on the type of test, the laboratory used, and the number of substances included in the panel. All testing for court purposes should be conducted by a NATA-accredited laboratory.

Who pays?

• Usually the party ordered to undergo testing bears the cost.
• The court can apportion costs between parties.
• Self-initiated testing is at the individual's own expense.
• Medicare does not cover testing for court purposes.

NATA accreditation

NATA (National Association of Testing Authorities) accreditation is essential. It ensures standardised collection and analysis procedures. Results from non-accredited labs may be challenged or excluded. Always confirm accreditation status before testing.

Challenging test results

A positive test result is not the end of the matter. There are legitimate grounds on which results can be challenged, and understanding these is important for both the person tested and the party relying on the results.

False positives

Certain prescription medications (codeine-based painkillers, benzodiazepines, some antidepressants) and foods (poppy seeds can trigger false opiate positives) may cause positive results. If you are taking prescribed medication, provide the laboratory and court with a list of all medications and prescriptions before testing.

Chain of custody issues

The chain of custody documents the handling of the sample from collection to analysis. Any break in the chain — improper sealing, unclear labelling, gaps in documentation, or improper storage — can render results unreliable. Challenge the chain of custody records if there are any irregularities.

Laboratory accreditation

Results from a laboratory that is not NATA-accredited for the specific type of testing conducted may be challenged on the basis that the analysis did not meet Australian standards. Confirm the laboratory's accreditation scope covers the specific tests performed.

Prescribed medication defence

A positive result for a substance that has been lawfully prescribed is not evidence of illicit drug use. Provide the court with prescribing records, pharmacy dispensing records, and a letter from the prescribing doctor confirming the medication, dosage, and therapeutic purpose.

Confirmatory testing

Initial screening tests (immunoassay) have a higher rate of false positives. If a screening test is positive, request confirmatory testing using gas chromatography-mass spectrometry (GC-MS) or liquid chromatography-mass spectrometry (LC-MS/MS). These methods are highly specific and virtually eliminate false positives.

Supervised contact during testing

While testing is pending or ongoing, the court may order supervised time arrangements to protect the child. Understanding how supervised contact works and the pathway back to unsupervised time is essential.

Supervision options

• Family contact centres: Purpose-built facilities with trained supervisors who observe parent-child interactions. The most structured form of supervision, providing written reports to the court. Typically $50–$150 per visit.
• Professional supervisors: Private individuals or services engaged to supervise visits in community settings. More flexible than contact centres but more expensive. Reports can be filed with the court as evidence.
• Approved family members: A trusted family member or friend acceptable to both parties and the court. Less formal and less costly, but may be inappropriate in high-risk cases. The supervisor must understand their responsibility to intervene if concerns arise.

Transitioning to unsupervised time

The court typically takes a graduated approach to restoring unsupervised contact as a parent demonstrates sustained sobriety:

1. Supervised contact at a contact centre or with a professional supervisor
2. Supervised contact with an approved family member
3. Short unsupervised daytime visits (a few hours)
4. Longer unsupervised daytime visits
5. Overnight stays and eventually regular unsupervised parenting time

Rehabilitation evidence

Courts recognise that people can change. A parent who has struggled with substance abuse but demonstrates genuine, sustained rehabilitation will be assessed on their current circumstances — not solely on their past. The key is providing credible, documented evidence of change.

Types of rehabilitation evidence

• Drug and alcohol counselling: Completion certificates and attendance records from accredited drug and alcohol counselling programs. Individual counselling is valued alongside group programs.
• AA / NA attendance records: Attendance records from Alcoholics Anonymous, Narcotics Anonymous, or equivalent peer support programs. Regular and sustained attendance over months demonstrates commitment.
• Voluntary random testing programs: Enrolling in a voluntary random testing program provides ongoing objective evidence of sobriety. A sustained record of clean results over 6 to 12 months is highly persuasive to courts.
• Residential rehabilitation: Completion of a residential rehabilitation program demonstrates serious engagement with recovery. Programs typically run 30 to 90 days and include intensive therapy, education, and aftercare planning.
• Psychiatrist and psychologist reports: Expert reports addressing the nature of the substance use disorder, the treatment undertaken, prognosis for recovery, and current risk assessment. These carry significant weight with courts.
• Parenting courses: Completion of parenting courses demonstrates investment in improving parenting capacity. Courts view this positively as evidence of a parent's commitment to their children's wellbeing.

Past risk vs current risk

The court's focus is on current and future risk to the child, not punishment for past behaviour. Positive indicators include a sustained period of sobriety (months, not weeks), multiple forms of evidence (testing + counselling + reports), acknowledgment of the problem and its impact, and proactive steps taken without court prompting. Risk factors include a history of relapse after previous rehabilitation, minimising the substance use or its impact on children, gaps in testing records or compliance, and lack of ongoing support or aftercare plan.

Common questions