Hamuera Hodge was once hooked on heroin, but the reformed drinker and drug-user reckons synthetic cannabis is much worse and should not be seen on the city's streets.
Mr Hodge, a father of six, wants all psychoactive substances banned from Rotorua.
The Government banned the sale of all psychoactive substances last year but the products, which are an ingredient in products such as synthetic cannabis and party pills, are going to be allowed for sale nationwide if manufacturers can prove they are not harmful.
The Rotorua Lakes Council is in the process of drawing up a draft Local Approved Products Policy to decide where these products can be sold.
Mr Hodge said three of his adult children smoked synthetic cannabis when it was legal and all had experienced personality changes and had trouble concentrating. "I know drugs, I used to take the needle, but when I saw the side effects of these synthetics I can see how it puts people in mental institutions," he said.