How do you use suspect as a noun?

The noun 'suspect' functions as the subject of a sentence or a clause, and as the object of a verb or a preposition.

Examples:

The suspect has been apprehended. (subject of the sentence)

The victim who the suspect robbed is here to make an identification. (subject of the clause)

The victim struck the suspect with her purse. (direct object of the verb 'struck')

The victim had made a positive identification of the suspect. (object of the preposition 'of')