Burnett added: “Spice is a particularly dangerous synthetic cannabinoid.
“Depending on its chemical structure, the effects can last between one and six hours and can leave the user wanting more and taking larger doses.”
In the wider operation, in which police swooped on both properties and transport hubs, the force executed seven warrants, made 19 checks on licensed premises and seized four firearms, various drugs and £81,747 cash, while there were 103 arrests.
The force said 16 adults and children were safeguarded, while seizures included:
Assistant Chief Constable Matt Longman, operational lead, said Operation Scorpion was designed to make the South West a “hostile environment” for drug dealers.
The operation took place between 22 and 28 June and involved the Avon and Somerset, Devon and Cornwall, Dorset, Gloucestershire and Wiltshire forces, supported by the South West Regional Organised Crime Unit and British Transport Police.
The operation featured increased patrols and targeted raids on those involved in drug supply.
The force said enforcement and safeguarding were a key element, thanks to collaboration with street pastors, venue security staff, taxi marshals and support services “to identify and assist vulnerable individuals”.
It said there was also a focus on “prevention and rehabilitation” for those found with drugs for personal use.