Jeff Welty wrote a post in 2010 on when a seizure occurs after an officer operates emergency lights to order a driver to stop his or her vehicle. This post updates his post by summarizing the relatively recent North Carolina Court of Appeals case of State v. Mangum, ___ N.C. App. ___, 795 S.E.2d 106 (Dec. 6, 2016), review denied, ___ N.C. ___, 2017 WL 1086917 (March 16, 2017), which ruled on this issue and provides a useful summary of the case law in North Carolina and other jurisdictions.