Hicks also invokes his constitutional right to keep and bear arms, guaranteed under the Second Amendment to the United States Constitution and Article I, Section 21 of the Pennsylvania Constitution. See U.S. CONST. amend. II (“A well-regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.”); PA. CONST. art. I, § 21 (“The right of the citizens to bear arms in defence of themselves and the State shall not be questioned.”). Although the right to keep and bear arms serves as an important conceptual backdrop to numerous legal issues surrounding firearms and the enforcement of the criminal law, our analysis will not focus upon the contours of that right. The issue presented is one of law enforcement practice, and the constitutional right at issue is the freedom from unreasonable, warrantless seizure of the person for purposes of criminal investigation. As such, this case is governed by the Fourth Amendment’s Terry doctrine, not by the right to keep and bear arms.