"We want to remind them that these things are illegal and make the environment so hostile that they choose not to do it."
In the past police efforts to tackle drug use have focused on drug dealers as the priority.
But David Sidwick, police crime commissioner for Dorset, said that going after recreational drug users would "add value" to efforts to tackle drugs.
He said it was "absolutely right" to keep "going after kingpins and cutting the head off the snake" at the same time, and called for "tough enforcement" of the law.