The Admiral of Patrols [1] was a former command appointment within the Admiralty during World War I usually held by a junior flag officer the post was established from 1912 to 1916.
The need for some sort of patrol protection function being established was indicated by Admiral Lord Charles Beresford as early as 1907.
In 1909 Admiral Fisher obtained a small number of vessels for experimentation, Beginning about 1910 the Admiralty acknowledged that this sort of service may likely be in the form of local coastal patrol support for the regular navy at this time there was a lack of patrol capabilities within the Royal Navy.
The Auxiliary Patrol was the front-line force in the defence of initially the British Isles, but later also the Mediterranean, against German mines and submarines.
Primary source for this article is by Harley Simon, Lovell Tony, (2017), Admiral of Patrols, dreadnoughtproject.org, http://www.dreadnoughtproject.org.