The following definitions apply under this Article:
(a) Statement. A "statement" is (1) An oral or written assertion; or (2) Nonverbal conduct of a person, if it is intended by him as an assertion.(b) Declarant. A "declarant" is a person who makes a statement.(c) Hearsay. "Hearsay" is a statement, other than one made by the declarant while testifying at the trial or hearing, offered in evidence to prove the truth of the matter asserted.(d) Statements Which Are Not Hearsay. A statement is not hearsay if:(1) Prior Statement By Witness. The declarant testifies at the trial or hearing and is subject to cross-examination concerning the statement, and the statement is (i) inconsistent with his testimony and, if offered in a criminal proceeding, was given under oath and subject to the penalty of perjury at a trial, hearing, or other proceeding, or in a deposition, or (ii) consistent with his testimony and is offered to rebut an express or implied charge against him of recent fabrication or improper influence or motive, or (iii) one of identification of a person made after perceiving him; or(2) Admission By Party-opponent. The statement is offered against a party and is (i) his own statement, in either his individual or a representative capacity, (ii) a statement of which he has manifested his adoption or belief in its truth, (iii) a statement by a person authorized by him to make a statement concerning the subject, (iv) a statement by his agent or servant concerning a matter within the scope of his agency or employment, made during the existence of the relationship, or (v) a statement by a co-conspirator of a party during the course and in furtherance of the conspiracy.