The following is new to me:
"SOSUS has also been used by law enforcementpersonnel, most notably in drug interdiction efforts for over-water supply routes from Central and South America."
wrote:
LT John Howard, United States Navy Naval Postgraduate School, Monterey, California Undersea Warfare Department in his paper
"FIXED SONAR SYSTEMS THE HISTORY AND FUTURE OF THE UNDEWATER SILENT SENTINEL" page 12
at https://nps.edu/documents/103449515/0/HOWARDAPR2011.pdf/1219db41-a727-4940-ab0b-b953c54f6e01
in [presumably the US] THE SUBMARINE REVIEW, April 2011.
______________________________
Part Confirmed by:
1. The Journal of the Acoustical Society of America 95, 2852 (1994); doi: 10.1121/1.409559
at https://asa.scitation.org/doi/pdf/10.1121/1.409559
“Using modern computers and networking technology, such an observatory could provide data from SOSUS arrays for research, law enforcement...”
and
2. https://fas.org/irp/program/collect/surtass.htm Ocean Surveillance Ships conduct submarine hunting patrols and counter drugmissions. Ships on Submarine hunting duty employ a towed sonar array. Data is transmitted from the ship to an acoustic processing site ashore via satellite. Stalwart class ships were designed to search for foreign submarines. Several have since been assigned as drug interdiction forces. Victorious class ships are built on a Small Waterplane Twin Hull (SWATH) design for stability at low speeds and in rough waters.