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Pre-employment Drug Testing in Australia

Nov 13, 2023

Pre-employment drug testing in Australia is a mandatory practice in many industries that ensures the health, safety, and productivity of a workplace. Throughout this blog post, we will explore everything employers need to know about pre-screening job applicants for drug use during the hiring process. Read on to learn about the importance of pre-employment drug testing, the various drug testing methods, best practices for employers, and everything in between.

What Is a Pre-employment Drug Test?

A pre-employment drug test is a screening process wherein a prospective employee is tested for the use of illicit drugs or substances before they are offered a job. This test is conducted to determine if a job applicant has recently used any illegal or prohibited substances. The results of this test play a significant role in the employer's decision-making process regarding the applicant's suitability for the position.

Why Do Employers Use Pre-employment Drug Tests?


The pre-employment drug testing process is designed to ensure that job candidates meet certain standards of behaviour and health that are important to the employer's workplace culture and the nature of the job itself. Predominantly about ensuring workplace health, safety, and productivity, pre-employment drug testing in Australia is critical in mitigating potential risks, reducing accidents, and ensuring a drug-free work environment.



Pre-employment drug testing is more prevalent in certain industries where safety, public health, regulatory compliance, and the nature of the work make it essential. Some of the industries that commonly require or conduct pre-employment drug tests include:

  • Transportation & logistics
  • Construction & manufacturing
  • Healthcare & hospitals
  • Law enforcement
  • Emergency services
  • Aviation & defense
  • Mining
  • Government positions
  • Education & childcare
  • Private Security

Drug Testing Methods


Drug testing is a crucial step in the pre-employment screening process in various industries as it helps to ensure a safe and productive environment for both employers and employees. Different industries will utilise different methods of drug testing based on the detection window and nature of the test. Explore the most commonly used methods of pre-employment drug testing below.


Urinalysis (Urine testing)

The most common method for workplace drug testing, urinalysis, is the process wherein the candidate provides a urine sample, which is then sent to a specialised laboratory for analysis. Urinalysis is highly effective in detecting recent drug use and is suitable for a wide range of substances. The detection window typically spans a few days to a few weeks, depending on the drug. We also supply a product to enable you to complete your own urine testing in house.


Hair Follicle Test

In a hair follicle test, a small sample of hair, usually from the scalp, is collected and analysed. Compared to urinalysis, hair follicle testing offers an extended detection window, with most results detecting drug use over a more extended period, up to approximately 90 days.


Oral Fluid Test (Saliva Testing)

For this oral fluid testing, a swab of saliva is collected from the mouth, making it one of the most non-invasive means of drug testing. This method is excellent for detecting recent drug see, typically within a few days and is ideal for when a quick assessment is required. See our shop for more products.


Alcohol Breath Testing

Breath testing, commonly known as a breathalyser test, is primarily used for alcohol detection. It measures the concentration of alcohol in an individual's breath, providing an indication of intoxication levels. While not a typical method for detecting other drugs, it plays a crucial role in ensuring workplace safety, particularly in industries where sobriety is paramount.


The choice of method for a pre-employment drug test depends on several factors, including the specific substances being screened for, the desired detection window, and the nature of the job. At Australian Workplace Drug Testing Services (AWDTS), we work closely with employers to determine the most appropriate method based on their needs, and industry requirements.

Commonly Tested Substances


In a pre-employment drug test in Australia, the substances most commonly tested for can vary depending on the employer's policies, industry regulations, and the nature of the job. However, there are several substances that are frequently included in standard drug test panels. These substances typically include:

  • Marijuana (THC)
  • Cocaine
  • Amphetamines (including MDMA and Methamphetamine)
  • Opiates (including morphine, codeine, hydrocodone, hydromorphone, oxycodone, and heroin)
  • Phencyclidine (PCP)
  • Alcohol

Best Practices for Employers


In Australia, pre-employment drug testing is subject to various legal and regulatory considerations. There are clear exceptions for numerous industries based on safety concerns and regulatory requirements. While respecting individual privacy rights remains a fundamental principle, these exceptions serve as a reminder that the collective safety and well-being of all stakeholders often take precedence in certain high-risk environments.


It is best practice for businesses that wish to have their existing and prospective staff tested for substance abuse that they develop a comprehensive drug and alcohol testing policy based on the regulations associated with that industry. The policy should clearly outline the company's stance on substance abuse in the workplace and must be communicated to all employees and job applicants.

Employee Rights

Employees (current or prospective) can refuse a drug test; however, they risk their employment in doing so, as such refusal may be interpreted as non-compliance with company policies or industry regulations. In many cases, refusal to undergo a drug test may result in job offers being rescinded or, for current employees, disciplinary actions, which can include termination of employment.



Prospective employees who fail their pre-employment drug test may have to withdraw their job application. However, this is based on the nature of the industry the business operates within, the employer's policies, and the circumstances surrounding the failed test. It's important for job applicants to be aware of a company's drug testing policies and to make informed decisions regarding their personal choices and their impact on potential employment opportunities.

Safeguard Your Workplace With Pre-employment Drug Tests

Conducting a pre-employment drug test during the screening or hiring stage is an essential step for businesses in various industries to ensure a safe, secure, and productive workplace environment. As an employer, it is your responsibility to ensure the safety of your employees and your workplace environment as a whole. At AWDTS, we understand this responsibility and offer tailored solutions to help you meet industry regulations and ensure your workplace remains safe and productive.

As a registered training organisation, in addition to an expansive range of testing devices, we also offer a range of training courses that equip you and your staff with a wealth of knowledge relating to the testing and management of drug and alcohol-related matters.


For comprehensive pre-employment drug testing in Australia or more information about how we can help you, please don't hesitate to contact a member of our friendly team. Our team is here to help guide you towards a safer, more successful, and productive future.

13 Nov, 2023
Explore AWDTS comprehensive guide to oral fluid drug testing. Gain insights into accurate and reliable testing methods. Find out more & shop online.
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