Answer:
Subordinate clause: "that they could outsmart the law"
Clause type: Adjective clause
Explanation:
A subordinate or dependent clause is a group of words with a subject and a verb that does not express a complete thought on its own, and therefore it cannot stand by itself: it needs to depend on another clause to have meaning. In a sentence, this type of clause may function as an adjective, an adverb or as a noun.
As an adjective clause, it describes, modifies or adds further information to another noun; and always begins whether with a relative pronoun (who, whom, whose, that, or which) or a relative adverb (when, where, or why).
In the sentence, "that they could outsmart the law" is a subordinate clause because it has a subject (they) and a verb (outsmart) and it can not express a complete thought. Furthermore, it is also an adjective clause because it begins with the relative pronoun "that" and it describes the noun "belief". What belief did they have? "that they could outsmart the law."
