The Constable is a minor character in Primal. He only appears for a very short time. He is allowed into the house by Stevens once given clearance to do so by Lord Darlington. He warns the men in the house of an escaped convict from a nearby asylum and tells them to report anything suspicious and to stay indoors for their own safety.
As he turns to leave, Darlington points to Charles and jokingly exclaims that he is the mad-man who escaped. The Constable ignores this and carries on his way, muttering to himself that he "never understood the educated type."