Det Insp Gary Matthews, of the intelligence department of Devon & Cornwall Police, said the force “has been able to play its part in disrupting the serious threat from organised crime groups”.
He said: “Illegal drugs, weapons and criminal cash have been seized, and working with colleagues from UK Immigration Enforcement four people who arrived in the UK illegally and have no right to stay here have been deported.
“We have also carried out some innovative interventions, such as what we call Op Pester.
“We seized the mobile phone of a drug line holder and sent messages to the 105 contacts in the phone, his customers, signposting them to drug services and potentially creating intelligence gathering opportunities.”