Constable David Carrick gave the outward appearance of an officer who was a credit to the force. Dependable, reliable and trusted to the point where he could be armed and placed on the most high profile of duties.
At the pinnacle of a police career spanning two decades, Carrick served in what is now the Parliamentary and Diplomatic Protection Command, providing an armed policing presence at parliamentary, government and diplomatic premises.
And yet throughout a working life spent supposedly in the service of his country either in the police or army, Carrick preyed on a host of victims, subjecting women to the most vile, degrading sexual abuse, violence and threats.