Sydney Trains is testing Mousetrap, an electronic sensor which can detect vapour from spray paint and permanent markers pens to provide a real-time alert when a graffiti attack is underway. Live CCTV images are streamed to control staff, and police officers can be dispatched to catch the vandals.

An undisclosed number of trains have been fitted with Mousetrap, which has so far led to the arrest of more than 30 offenders. ‘Vandals won’t know where and they won’t know when we’re watching’, said New South Wales Minister for Transport & Infrastructure Andrew Constance.

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But will the vandals be able to work around this one? Could they eventually be able to identify the Mousetrap, and indeed find  a way of disarming it?  Anything is worth a go though and I hope this one is successful for Sydney Trains.

I dont understand the thinking. Why even mention that it exsists? That way the grubs dont know about it and dont know what to look for.

I dont understand the thinking. Why even mention that it exsists? That way the grubs dont know about it and dont know what to look for.

Maybe it's a bluff - it doesn't exist? Maybe nobody's been arrested, and it's all one massive deterrent

I dont understand the thinking. Why even mention that it exsists? That way the grubs dont know about it and dont know what to look for.

It becomes a bigger bogieman by giving an exaggerated impression of its coverage.  Perhaps it does not even exist or is too expensive to deploy widely.