Why security rostering is more complex than standard workforce scheduling
Security rostering involves constraints that most scheduling software is not built for. Each guard must hold the correct licence class for the duty type and the state where the site operates. Some sites have minimum experience requirements set by the client contract. Duties often start at irregular hours, span weekends and public holidays, and require cover continuity where an empty post is a contractual and sometimes a safety breach.
On top of site and licence constraints, the Security Services Industry Award 2020 adds award obligations: minimum engagement periods, rest requirements between duties, and penalty rates that change based on the day of the week and the time of day. A roster that looks adequate on a spreadsheet can generate significant award liability if the pay implications are not calculated.
Common coverage models for Australian security operations
Most Australian security companies operate on one or more of the following coverage models. The choice affects how rosters are planned and how gaps are filled.
Fatigue and consecutive-duty management
Fatigued security personnel are a safety risk to themselves, to the people they are protecting, and to the public. Rostering practices that push guards into excessive consecutive duties or deny adequate rest between duties create both a WHS exposure and an award compliance problem.
The Security Services Industry Award 2020 contains minimum rest requirements between duties. Employers should also consider their obligations under the Work Health and Safety Act applicable in their state or territory. The model WHS laws in most jurisdictions require employers to manage risks to health and safety, and fatigue is a recognised hazard for security workers performing lone or isolated work.
Practical rostering approaches that reduce fatigue risk include:
- Setting a maximum number of consecutive duty days as a roster rule, based on the award and your WHS risk assessment
- Enforcing a minimum rest gap between duty end time and the next duty start time in your rostering system
- Flagging any guard whose weekly totals are approaching overtime thresholds before publishing the roster
- Avoiding repeated night-to-day duty transitions that disrupt circadian rhythms
- Maintaining a visibility of hours across the full week, not just per day
Building a reliable fill strategy for last-minute vacancies
Vacancies happen. A guard calls in sick an hour before a duty start, a licence is suspended, an emergency reassignment leaves a post uncovered. The companies that handle this well have a documented fill strategy rather than relying on a manager's memory.
A tiered fill process typically works as follows:
- On-call or standby guard. The most ready-to-deploy option. Effective where the operations model includes a standby guard specifically for cover.
- Guards already familiar with the site. Site familiarity reduces briefing time and gives the client confidence. Prioritise guards who have worked the site before and hold the correct licence class.
- Available guards with the correct licence. Expand the search to any guard with the right licence class who is not currently booked and has adequate rest since their last duty.
- Approved subcontractors or labour hire. Used when the internal pool cannot cover. Verify the subcontractor's current licence before committing them to the duty. Keep subcontractor rates in your system so the pay run is accurate.
- Client notification. If a post will be temporarily uncovered or covered below the contracted minimum, notify the client promptly. Most contracts contain notification requirements.
Documenting every fill decision matters. If a substitution later results in a complaint, a licence query, or an insurance claim, a clear record of who was contacted, when, and what decision was made protects the company.
Managing subcontractors in your roster
Many Australian security companies use a mix of direct employees and subcontractors or labour hire workers to provide flexibility. From a rostering perspective, the core rule is: verify the subcontractor's licence before assigning them to a duty, and treat the licence as a blocker, not a box-tick.
Key things to track for each subcontractor in your roster system:
- Licence class and number
- Licence expiry date and the state it was issued in
- Any conditions or restrictions on the licence
- Insurance currency (check your client contracts for requirements)
- The agreed rate, so payroll is not a manual lookup
- Whether they are subject to your welfare check obligations for isolated work
Welfare check obligations for lone workers extend to subcontractors working under your direction on your client sites. See the lone-worker welfare guide for more detail.
Compliance-aware duty assignment
A duty assignment is not just about who is available. A compliance-aware roster system enforces:
- Licence class match. The guard's licence class must meet the requirements for the duty type in the relevant state. A guard cannot legally perform crowd control duties in a state where they do not hold the crowd controller licence endorsement.
- Licence currency. An expired licence means the guard is not legally permitted to work. The licence expiry date should be a hard block in the rostering system, not a warning the operator can ignore.
- Award minimum engagement. The Security Services Industry Award sets minimum engagement periods. A duty shorter than the minimum is still payable at the minimum. Rosters that routinely create sub-minimum duties generate avoidable cost and compliance exposure.
- Advance notice of roster changes. The award contains provisions about how far in advance a roster must be given and how changes are notified. Check the current award text for the applicable notice period.
For a full explanation of state licence requirements, see the security licence compliance by state guide.
Related guides
Frequently asked questions
What is the difference between static and mobile patrol rostering?
Static rostering allocates a named guard to a fixed site for a defined duty window. Mobile patrol rostering assigns a guard to a run of multiple sites within a patrol beat. They require different planning tools: static rosters focus on cover continuity and classification match; patrol rosters add route sequencing and minimum site-contact-time requirements.
How many consecutive duties can a security guard work before a mandatory rest day?
The Security Services Industry Award 2020 contains provisions on maximum consecutive days of work and minimum rest periods between duties. Employers should check the current award text for the applicable limits rather than relying on general guidance, as specific conditions and exemptions apply.
Can I roster a subcontractor on a duty that normally requires an employee?
It depends on the site contract, the subcontractor's licence class, and the labour hire or subcontract arrangement in place. Subcontractors working under a principal contractor's licence must hold the relevant class for the duties they perform. Always verify the subcontractor's licence is current and appropriate before the duty.
What records should I keep for rostering compliance in a security company?
At minimum: duty start and end times, guard name and licence number, site details, any changes made after publication, and supervisor approval of any late substitutions. Where the Award applies, records must be retained for the period required by the Fair Work Act (generally seven years). GPS and clock-in evidence additionally supports client and insurer audits.
How do I fill a last-minute gap when a guard calls in sick?
A tiered fill process works well: first offer the duty to the on-call or standby guard for that site, then to guards who have worked that site before, then to guards with the correct licence class generally, then to approved subcontractors or labour hire. Document every fill decision so you have a record if the substitution is queried.