Kathy Taft was bludgeoned and raped on March 5, 2010, as she lay in the bedroom of a friends’ home in Raleigh recovering from surgery. She died four days later. Raleigh police tracked down her killer, Jason Williford, through what then-police chief Harry Dolan called “gumshoe detective work”: They collected and tested trash discarded by neighborhood men who refused to provide samples of their DNA.
Search and Seizure
Updated Paper on Traffic Stops
I’ve recently updated my paper on traffic stops. As before, it covers stops from start to finish, including the legal standard for making a stop, the length of a stop, and investigative techniques that may be used during a stop. I may need to update it again after the Supreme Court decides United States v. … Read more
When Reasonable Suspicion Is Dispelled
A traffic stop is valid if it is supported by reasonable suspicion. During a valid traffic stop, an officer may demand the driver’s license and registration, may run a computer check based on those documents, and so on. But what if the reasonable suspicion supporting the stop dissipates soon after the stop is made?
Drug Dog Legal Update
North Carolina’s appellate courts have recently issued two important opinions on the use of drug dogs, and the United States Supreme Court has granted certiorari in another drug dog case. This post summarizes these recent developments.
United States Supreme Court Rules that Reasonable Suspicion May Be Based on Reasonable Mistakes of Law
Shea blogged here about State v. Heien, the case in which the court of appeals ruled that having one burned-out brake light was not a violation of G.S. 20-129 and so did not support a vehicle stop. (The stop led to a consent search of the defendant’s vehicle, which led to the discovery of drugs and to drug trafficking charges.) The prosecution sought review in the state supreme court. That court assumed that the court of appeals was correct about the scope of the statute but determined (1) that an officer might reasonably think otherwise, given ambiguities in the statute, and (2) that reasonable suspicion may be based on a reasonable mistake of law. Conclusion (2) was the subject of a split of authority across the country, so the United States Supreme Court agreed to review the case. It issued its opinion yesterday.

Warrantless Stops 101 — Was the Stop Supported by Reasonable Suspicion?
In my first Warrantless Stops 101 post, I offered these basic questions to frame the analysis:
- Did a seizure occur?
- If so and it was a stop, was it supported by reasonable suspicion or other valid basis?
- If reasonable suspicion supported the stop, was the officer’s subsequent conduct sufficiently limited in scope?
- If the seizure was an arrest, was it supported by probable cause?
- If the arrest was supported by probable cause, was the search permissible?
My first post focused on whether a seizure occurred. This one looks at whether the stop was supported by reasonable suspicion. If so, the stop itself is constitutional and the only remaining issue is whether the officer’s conduct exceeded the scope of the stop, a topic I’ll take up in a later post.
Article for Officers and Others on Search Warrants for Digital Devices
Years ago, the School of Government did quite a bit of training for the Highway Patrol and other law enforcement officers. These days, we focus most of our criminal law courses on judges, lawyers, and magistrates. But I still view officers as an important audience for our work, and I recently wrote an article for Police Chief magazine that is meant to help officers obtain valid search warrants for digital devices.

Hospitalization of DWI Suspect Does Not Create Per Se Exigency Justifying Warrantless Blood Draw
The Chatham County sheriff’s deputy who arrested Ronald McCrary in Siler City for impaired driving at 7:34 p.m. on December 28, 2010 decided that if McCrary was taken to the hospital, he would obtain a sample of his blood without a warrant. McCrary was in fact taken to a nearby hospital—at his insistence—where he refused to cooperate with the medical staff and refused to consent to the withdrawal of his blood. Once the hospital discharged McCrary at 9:13 p.m., several officers restrained him while hospital staff withdrew his blood. Was the blood draw legal?
Police Jurisdiction in Satellite and Related Areas
I’ve had several questions recently about the territorial jurisdiction of municipal police in areas outside city limits. This post sums up the law.

Implied Consent Laws Can’t Provide End-Run around McNeely
The United States Supreme Court held in Missouri v. McNeely, 133 S. Ct. 1552 (2013), that the natural dissipation of alcohol in the bloodstream does not constitute an exigency in every impaired driving case that justifies a warrantless, nonconsensual blood draw. In so holding, the court rejected the state’s call for a categorical rule—based solely on the evanescent nature of alcohol—that would authorize warrantless blood draws over a defendant’s objection whenever an officer has probable cause to believe the defendant has been driving while impaired. Some states have continued to argue, however, that nonconsensual warrantless blood draws in impaired driving cases are categorically permissible based on implied consent laws enacted by their state legislatures. Two state supreme courts recently rejected such arguments, holding that implied consent statutes in Nevada and Idaho that do not allow a driver to withdraw consent to testing are unconstitutional. That reasoning might be applied to invalidate the provision of North Carolina’s implied consent law that categorically allows the warrantless testing of unconscious drivers.