Platinum Signs
Trespassers Will Be Prosecuted Sign
PSS-LC-NOT-0003 · Product data sheet
Data sheet
5 August 2026
https://www.platinumsigns.com.au
Description
Classic short-form trespass notice with security-notice yellow header and black border—industry-standard format recognised under state trespass and Inclosed Lands legislation. Suitable for commercial premises, yards, car parks, and gated entries where clear, concise notice is required. Offered in Colorbond, polypropylene, aluminium, or vinyl in 300×450 mm or 450×600 mm. Specify pre-drilled holes, lamination, or reflective Class 1/Class 2 for visibility in various lighting conditions. Platinum Signs delivers Australia-wide with trade-account pricing and bulk discounts for multi-site installations.
Final sign type, wording, size, placement and material depend on the site risk, project specification and applicable jurisdiction. Confirm the requirement with the relevant WHS adviser or regulator.
- Category
- Legal Compliance Signs
- Sign selection
- Confirm against site requirements
- Artwork
- Off-the-shelf design supplied as shown
- Product code
- PSS-LC-NOT-0003
Available materials
| Material | Specification |
|---|---|
| Colorbond Steel (0.6mm) | Rigid coated sheet steel suited to demanding indoor and outdoor installations. Print life depends on finish, exposure, edges and mounting. Indicative service life: Long-term substrate; print and site conditions apply. Typical use: Permanent installations, harsh environments. |
| Polypropylene (1.6mm) | Rigid plastic sheet suited to indoor and sheltered or general outdoor applications, subject to the print finish and site exposure. Indicative service life: Medium-term use; site conditions apply. Typical use: Warehouses, factories, permanent indoor/outdoor. |
| Aluminium (1.6mm) | Rigid aluminium sheet suited to long-term signage where corrosion resistance and dimensional stability matter. Indicative service life: Long-term substrate; print and site conditions apply. Typical use: Permanent outdoor installations and high-durability sites. |
| Self-Adhesive Vinyl (Sticker) | Peel-and-stick vinyl for smooth surfaces. Walls, doors, machinery, and equipment labelling. Indicative service life: Short- to medium-term use; surface and exposure affect service life. Typical use: Indoor walls, equipment labels, smooth surfaces. |
Available sizes
- • 300 x 450mm (Medium)
- • 450 x 600mm (Large)
Volume pricing — Polypropylene (1.6mm) · 300 x 450mm (Medium) (inc. GST)
| Quantity | Unit price | Saving |
|---|---|---|
| 1-4 | $31.95 | — |
| 5-9 | $29.39 | -8% |
| 10-24 | $27.16 | -15% |
| 25-49 | $24.28 | -24% |
| 50-99 | $21.73 | -32% |
| 100+ | $19.17 | -40% |
Prices shown for the listed material/size combination. Full configuration pricing is available at https://www.platinumsigns.com.au/safety-signs/legal-compliance/trespassers-will-be-prosecuted.
Frequently asked
Where exactly should I place this sign for maximum legal effect?
Install at every point where the public could enter or attempt entry—gates, driveways, side fencing, back laneways. The sign must be clearly visible to a person about to cross the boundary. In NSW, pair with enclosure under the Inclosed Lands Protection Act 1901.
Is the yellow header required by law, or is it just convention?
It's industry convention and aligns with AS 1319 security-notice formatting. The yellow header makes the sign more noticeable and is widely recognised as a warning. It's not a legal requirement but improves visibility and deterrent effect.
Which material is best for a car park or commercial yard?
Colorbond or aluminium are most durable and vandal-resistant in high-traffic commercial settings. Vinyl is lighter and easier to install on gates. All three are weather-resistant and meet AS 1319.
Do I need a separate sign for each entry point, or can one sign cover the whole property?
One sign per entry point is best practice. A single sign at the main gate may not satisfy the 'clear notice' requirement for side or rear entrances. Multiple signs ensure every potential trespasser is clearly warned.
How do I maintain visibility if the sign fades in sunlight?
Reflective Class 2 vinyl or Colorbond resists fading better than standard polypropylene. Inspect annually and replace if text becomes illegible—faded signage may not hold up in enforcement or prosecution.