Police dog Conan helped track down a suspect reports of items being thrown into Erlestoke Prison led to three arrests.
In the early hours of the morning, Conan helped detain a 30-year-old man after a brief search of a nearby wooded area.
The man was arrested on suspicion of conveyance of prohibited articles into prison by colleagues from Wiltshire Police's armed response unit.
A vehicle that was believed to have taken the suspect to the prison was stopped by a community policing team in Salisbury, where a 30-year-old man and 31-year-old woman were arrested.
The pair were arrested on suspicion of conveyance of prohibited articles into prison. The man was also arrested on suspicion of drug driving.
Sgt Paul Harvey said: "These arrests came about as a result of an effective and coordinated response by my colleagues, including PD Conan and his handler who tracked the initial suspect under challenging circumstances.
"Officers worked together seamlessly in response to the initial call and we are pleased to have arrested and detained three suspects in relation to this incident."
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here