Fog cannons don't always stop robberies.
An Auckland dairy owner's wife and a customer were injured by robbers with hammers at Jyoti's Dairy in Mount Roskill yesterday.
The criminals fled with tobacco and cash.
Sandringham Business Association's Jithin Chittibomma says fog cannons don't stop violent attacks.
"It works as a deterrent for young criminals, maybe, but not these kind of criminals who've made up their mind and come in prepared. They clearly timed it well. No fog cannon's going to stop that."
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