"It's really important that people report all suspicious behaviour to Police. In this case, it was just by luck that officers were able to uncover what was going on and get the drugs off our streets."
The investigation is ongoing.
Property and drug-related crime was being targeted by Counties Manukau Police in an ongoing effort to reduce offending in the area, Mr Honan said.
Information from the public was vital to its success and the police are always keen to hear from anyone with information, he said.
Contact your local police station or call the anonymous Crimestoppers line on 0800 555 111.