Notwithstanding the limitations in sections four and five of this article, this article does not prevent any West Virginia law-enforcement agency from doing any of the following that does not violate any policy of the law-enforcement agency or any local law or policy of the jurisdiction in which the agency is:
(1) Investigating, enforcing, or detaining upon reasonable suspicion of, or arresting for, a violation of law that is detected during law-enforcement activity authorized by law;