(a) A motion to dismiss in which the moving party has demonstrated that the action, claim, cross-claim or counterclaim subject to the motion is an action involving public petition and participation as defined in § 8136 of this title shall be granted unless the party responding to the motion demonstrates that the cause of action has a substantial basis in law or is supported by a substantial argument for an extension, modification or reversal of existing law. The court shall grant preference in the hearing of such motion.
(b) A motion for summary judgment in which the moving party has demonstrated that the action, claim, cross-claim or counterclaim subject to the action is an action involving public petition and participation as defined in § 8136 of this title shall be granted unless the party responding to the motion demonstrates that the cause of action has a substantial basis in fact and law or is supported by a substantial argument for an extension, modification or reversal of existing law. The court shall grant preference in the hearing of such motion.