You buckle up, pull the sash across, and assume the job is done. That matters, but it does not guarantee full protection in a crash, and it may not be enough to avoid a seatbelt offence if the belt is not sitting correctly.

A seatbelt is designed to spread crash forces across the stronger parts of the body and hold you in place long enough for airbags to work as intended. It cannot do that properly if the belt, seat or body position changes how those loads are managed.

When a belt underperforms

Myth: if the buckle clicks, you are safe and compliant. Reality: a belt can be fastened and still work badly if the lap section rides up onto the stomach, the shoulder sash sits under the arm, the seatback is too reclined, or slack is left in the webbing.

Even when the belt looks right at a glance, crash forces can overwhelm it. A severe impact, an awkward angle, bulky clothing, or worn hardware can all reduce how well it controls your movement, which is why people can still suffer serious injury despite wearing a seatbelt.

What cameras now see

That is where safety and enforcement now overlap. At least one recent fixed-camera rollout detects incorrect seatbelt use as well as speeding and illegal phone use, and seatbelt detections began with a six-month caution period while speeding went straight to infringement.

The key point for drivers is simple: “wearing” a seatbelt no longer means only having it clipped in. Cameras and officers are looking for obvious misuse, and the same mistakes that attract a fine and demerit points are often the ones that make the belt less effective in a crash.

Reset the fit

A common mistake is letting the lap belt sit too high, especially on short trips or over heavy clothing. That can increase forward movement before the belt loads up, and it shifts force away from the hips, where the belt is meant to work best.

  • Keep the seatback fairly upright and sit back into the seat
  • Place the lap belt low over the hips, not across the abdomen
  • Run the shoulder sash over the centre of the chest, not under the arm
  • Pull out slack and check the belt retracts cleanly
  • If the belt is frayed, twisted or the car has had a crash, get it inspected

Seatbelts still save lives, but they are not magic. A quick fit check before driving is one of the simplest ways to reduce injury risk and avoid being caught for incorrect use as enforcement tightens.