Police have defended their decision to prosecute Virender Singh, but refused to discuss the matter in any detail.
In a prepared statement, Counties-Manukau police said prosecutors respected the court's decision.
"Charges laid were based upon the best evidence acquired during the investigation and upon consultation with police prosecutions service,"the statement said.
Counties-Manukau police did not return Herald calls last night.
The decision to prosecute Mr Singh sparked an uproar in October, members of the public saying it sent the wrong message to criminals, and young people who intimidated storeowners.
Mr Singh's wife, Gagandeep Kaur, said at the time she and her husband were shocked by the charges because he had simply been defending himself.
Auckland's Sikh community staged a protest in support of Mr Singh.
Prithi Singh said at the time: "We know he's innocent and we all feel that he should be the victim."
Sensible Sentencing Trust spokesman Garth McVicar also criticised police in the early days of the case, attacking investigators when charges were laid.
He had not changed his view yesterday.
"I don't think he should have been charged and I think it's a bit sad that he's had to go through the trauma of that."
Crown Prosecutor Deborah Marshall said police had no ability to appeal against the decision to dismiss the charges against Mr Singh, but there were other options if they wanted to pursue a case.