Upon being accepted into service, she initially served with the Clyde Division of the Royal Naval Reserve until 11 October 1990. She then transferred to the University Royal Naval Unit (URNU) of Glasgow. In September 2012, she became the training vessel of the Oxford University Royal Naval Unit. She replaced in this role, which transferred to the Faslane Force Protection Squadron.
In June 2017, Smiter, in company with HM Ships, and, deployed to the Baltic to take part in the NATO BALTOPS exercise, marking the first time that the Royal Navy P2000's were involved in such an exercise.[3]
Smiter provides sea training for members of the Oxford University Royal Naval Unit.