A petition has been launched to ban the sale of so-called legal highs in shops across Angus.
The move follows a weekend incident at the county’s last High Street shop to sell new psychoactive substances (NPS).
Evape-o-lution in Montrose was at the centre of police activity on Sunday for the third time in recent weeks.
Concerns have been raised dangerous drugs are finding their way on to the streets.
Angus Liberal Democrats David May and Sanjay Samani have launched a petition calling on the owners of shops to stop selling NPS “with immediate effect”.
Mr Samani said: “There is no legitimate use of these products, which is why the UK Government has indicated that they will be banned in future. The owners should stop exploiting the vulnerable and stop selling them immediately.
“With the Montrose shop being broken into repeatedly, these dangerous drugs are finding their way on to the streets and may lead to serious health issues for people living in Angus.”
Montrose councillor Mr May said: “There are some very serious questions about security in the shop if the ‘legal high’ products can be removed so easily.
“This is especially worrying as it is clear that the products so many of these types of shops sell are not safe and have led to deaths as well as real long term health problems for so many people.
“I visited the Montrose shop this morning and I made the point to those in the premises that in my view the shop should be permanently closed.
“I repeat my call to the shop owner to do the right thing and close the shop now and never reopen.”
In Arbroath, a campaign to remove legal highs from shops culminated in the closure of the Evape-o-lution in Brothock Bridge.
A police spokesman said a man is expected to appear at Forfar Sheriff Court in connection with the Montrose incident.