Comparing Different Drug testing Options

Comparing Saliva, Urine, Blood & Breath Testing

The Pros & Cons of Different Drug Testing Methods

Hair Testing

  • Detection Window: Months to a year but cannot detect recent drug use until hair growth occurs
  • Effective long-term retrospective analysis of drug use
  • Ease Of Testing: Easy
  • Accuracy: Very High
  • Legal Acceptability: Often preferred for its defensibility and accuracy
  • Evasion Risk: Low ~ Extremely difficult to alter or evade
  • Cost: Typically more expensive and requires specialised equipment and expertise
  • Highly accurate and reliable, making it the preferred choice for family court or custody cases. It offers longer detection windows and can screen for over 90+ drug panels in a single test. While it may have higher initial costs, its comprehensive, long-term results minimise the need for frequent testing by covering several months of substance use history

Saliva Testing

  • Detection Window: Hours to a few Days
  • Does not offer long-term retrospective analysis of drug use
  • Ease Of Testing: Easy
  • Accuracy: Moderate
  • Legal Acceptability: May be questioned due to its shorter detection window or higher risk of false positives/negatives
  • Evasion Risk: Moderate ~ Can be diluted or contaminated
  • Cost: Cheaper but may lack the precision required for legal or forensic cases
  • Ideal for immediate drug use detection but covers fewer drugs and is considered less reliable than hair, blood or urine testing. It's a lower-cost option but more prone to false positives & negatives.

Blood Testing

  • Detection Window: Hours to a few days
  • Does not offer a long-term retrospective analysis of drug use
  • Ease Of Testing: Invasive
  • Accuracy: Very High
  • Legal Acceptability: Are often preferred for their defensibility and accuracy
  • Evasion Risk: Low ~ Hard to manipulate, but invasive and sample must tested soon after collection
  • Typically more expensive and requires specialised equipment and expertise, making it less accessible for routine testing
  • Accurate but more invasive. It's typically used in more critical scenarios due to its complexity and cost

Breath Testing

  • Detection Window: A Few Hours (Alcohol)
  • Does not offer a long-term retrospective analysis of drug use
  • Ease Of Testing: Easy
  • Accuracy: High (Alcohol)
  • Legal Acceptability: May be questioned due to its shorter detection window or higher risk of false positives/negatives
  • Evasion Risk: Low ~ Reliable for Alcohol, hard to evade
  • Cheaper but may lack the precision required for legal or forensic cases
  • Very limited in scope, as it only measures alcohol levels. However, it is cheap and widely used for immediate impairment detection

Urine Testing

  • Detection Window: Days to a few weeks
  • Offers limited retrospective analysis of drug use
  • Ease Of Testing: Easy
  • Accuracy: Moderate
  • Legal Acceptability: may be questioned due to its shorter detection window or higher risk of false positives/negatives
  • Evasion Risk: High ~ Can be tampered with (dilution of synthetic urine)
  • Cheaper but may lack the precision required for legal or forensic cases
  • Commonly used in workplaces as it is less expensive however the spectrum of drugs tested is limited and is easier to evade

Memberships & Accreditations

Collection of logos from various accreditation and certification bodies related to drug and alcohol testing, including NATA, Standards Australia, Society of Hair Testing, and others