Those working in the 'legal highs' industry believe banning certain products will only lead to the creation of new ones.
Urgent legislation in Parliament has made all 43 current synthetic cannabis products to be classed as "temporary controlled drugs" and withdrawn from sale.
The Prime Minister John Key says the Government could go further.
Should the Government go further and ban all party pills and other 'legal highs'? Here is the latest selection of Your Views: