The grammatical name given to the expression, "Officials of the Lagos state environmental task force and special offenses unit" is- it is a Noun phrase. It is the subject of the verb.
A noun—a word (or phrase) that names a person, place, or thing—is typically used as the subject.
Nouns combined with modifiers make up noun phrases.
Noun phrases can serve as subjects, objects, and prepositional objects just like nouns can.
Similar to adjectives, participles, infinitives, and prepositional or absolute phrases, noun phrases can also function as these in a sentence.
Noun phrases are crucial for giving a noun additional context.
The verb (or predicate), which describes an activity or a state of being, is typically used after the subject.