Changing Behaviour: Queensland’s Alcohol Interlock Program

In Queensland, road traffic fatalities due to alcohol-impaired driving have been a pressing concern. Each year, a significant number of fatalities and severe injuries occur on Queensland roads due to incidents of drunk driving, comprising more than one-fifth of all lives lost on these roads. Reducing these fatalities is a top priority for the government and law enforcement agencies. Welcome Queensland’s Alcohol Interlock Program, a groundbreaking initiative aimed at changing behaviours and reducing alcohol-related incidents on the roads of this Australian state. This innovative program for interlock in QLD represents a significant step forward in improving road safety and saving lives by addressing the critical issue of alcohol-impaired driving. This article will explore how this program works, its impact on behaviour change, and its role in making the roads safer for everyone.

A Look at How Alcohol Interlock Program Works

Mandatory Installation of Interlock Devices

One of the central components of the program is the mandatory installation of alcohol interlock devices in the vehicles of repeat drink-driving offenders. These devices necessitate the driver to submit a breath sample prior to initiating the vehicle. If alcohol is identified in the breath sample, the vehicle will be prevented from starting. This serves as a powerful deterrent against driving under the influence of alcohol.

Behaviour Modification

Beyond just preventing individuals from driving while intoxicated, the Alcohol Interlock Program aims to change behaviour over time. Participants are required to use the interlock devices for a specified period, during which they must consistently demonstrate responsible drinking behaviour. This not only reduces the immediate risk but also encourages long-term change.

Graduated Licensing System

Queensland’s program incorporates a graduated licensing system for participants. This means that individuals may progress from using the interlock devices to eventually regaining full driving privileges. However, this progression is contingent on the successful completion of the program and continued adherence to responsible drinking habits.

Impact on Behaviour Change

The Alcohol Interlock Program has been instrumental in changing the behaviour of individuals with drink-driving convictions. Here’s how it achieves this:


By requiring participants to use interlock devices, the program holds individuals accountable for their actions. Knowing that they cannot operate a vehicle while intoxicated compels them to think twice about drinking and driving.

Consistent Monitoring

The program involves continuous monitoring of participants’ alcohol-related behaviours. This consistent oversight encourages individuals to stay committed to responsible drinking habits throughout the program’s duration.


Participants receive education on the dangers of alcohol-impaired driving and the importance of responsible consumption. This knowledge enables them to make well-informed choices and lowers the chances of repeating mistakes from the past.

Long-term Impact

The program’s emphasis on behaviour change goes beyond the duration of interlock device use. It aims to instil a lasting commitment to responsible drinking, which can have a positive impact on participants’ behaviour even after they complete the program.

Safety Benefits

The safety benefits of Queensland’s Alcohol Interlock Program are significant and far-reaching:

Reduction in Alcohol-Related Crashes

By preventing alcohol-impaired individuals from driving, the program directly contributes to a reduction in alcohol-related road accidents. This, in turn, saves lives and reduces the strain on healthcare systems.

Enhanced Road Safety

The program creates safer roads for all users, including pedestrians and other drivers. Fewer incidents of drunk driving mean fewer accidents and injuries on the roads.

Decreased Recidivism

Participants who complete the program are less likely to re-offend, leading to a safer driving environment for everyone.


Alcohol Program for interlock in QLD stands as a shining example of how innovative strategies can change behaviour and improve road safety. By combining mandatory interlock device installation with behaviour modification and education, the program not only prevents drunk driving but also fosters lasting change in individuals’ attitudes towards alcohol consumption. As a result, Queensland is making its roads safer, one responsible driver at a time. It serves as a model for other regions looking to address the critical issue of alcohol-impaired driving and save lives on their roadways.