HOL is an abbreviation for Higher order logic[?], a branch of symbolic logic in which statements can be quantified over objects, predicates, predicates of predicates etc.
... of State Security Service[?]
Finland
Suojelupoliisi[?] (SuPo)
France
Défense et Sécurité du Territoire (DST)
Deuxieme Bureau[?] (Defunct)
Direction Générale de ...