Law enforcement officers often seek search warrants for suspects’ cell phones. When they do, judicial officials must determine what sort of evidence is needed to support the issuance of a warrant. Many people have their phones with them at all times, and use their phones to document and discuss every aspect of their daily activities. Does that mean that when an officer has probable cause to believe that a suspect committed a crime, the officer automatically has probable cause to search the suspect’s cell phone for evidence of the crime? Or does the officer need a more specific nexus between the crime and the phone?
probable cause

State v. Lindsey: Another Close Call on Probable Cause for DWI
Do the following facts provide probable cause to arrest for impaired driving?
An officer pulls behind a vehicle at a stoplight around 3 a.m. and sees that its registration is expired. He activates his blue lights, and the defendant turns into a nearby parking lot. When the officer approaches the car, the defendant tells him that his license is revoked for DWI. The officer smells a medium odor of alcohol coming from the defendant’s breath and sees that the defendant’s eyes are red and glassy. The officer performs an HGN test, noting 5 of 6 indicators of impairment. The defendant tells the officer that he had three beers at 6 p.m. the previous evening.
The court of appeals answered this question earlier this week in State v. Lindsey, ___ N.C. App. ___ (2016). Its answer, and the outcome of the case, may surprise you.
Searches of Vehicles and Occupants Based on the Odor of Marijuana
May an officer search a motor vehicle based on the officer’s detection of the odor of marijuana coming from the vehicle? May the officer search the occupants of the vehicle? Several recent cases address these questions.

HGN, the Rules of Evidence and Suppression Hearings
True or False: An officer does not have to be qualified as an expert to testify about horizontal gaze nystagmus in a hearing on a motion to suppress in an impaired driving case.
No Probable Cause to Search Vehicle Occupant Based Solely on Generalized Odor of Marijuana Emanating From Vehicle
The existence of probable cause to search a vehicle and probable cause to search a vehicle occupant based on an odor of marijuana emanating from a vehicle present separate legal issues. The North Carolina Court of Appeals on August 2, 2016, ruled in State v. Pigford that although an officer had probable cause to search a vehicle, he did not have probable cause to search a vehicle occupant based on the marijuana odor. However, another theory mentioned by the court may ultimately support the admission of the illegally-seized evidence at the retrial of the case.
The Statutory “Four Corners” Rule When Determining Probable Cause for a Search Warrant
G.S. 15A-245 provides that information other than that contained in a search warrant affidavit may not be considered by the issuing official in determining whether probable cause exists to issue the warrant unless the information is either recorded or contemporaneously summarized in the record or on the face of the warrant by the issuing official. This is commonly known as the “four corners” rule because the issuing official and later a judge at a suppression hearing may only consider information within the four corners of the search warrant (with the limited exception mentioned above). The issue does not arise often in appellate court opinions. However, it was involved in the June 21, 2016, North Carolina Court Appeals case of State v. Brown, available here, and is the subject of this post.
N.C. Court of Appeals Rules That Affidavit For Search Warrant to Search Residence Failed to Link Residence to Drug Activity That Had Occurred Elsewhere
Last week a three-judge panel of the North Carolina Court of Appeals in State v. Allman (5 Jan. 2016), ruled (2-1) that a search warrant to search a residence for drugs was not supported by probable cause because the affidavit failed to link the residence to drug activity that had occurred elsewhere. This post discusses some of the interesting issues in this case, including possible state supreme court review.
Search Warrants for Suicide Scenes
Here’s a question that comes up from time to time: May a search warrant issue for a residence in which an apparent suicide has taken place, in order to rule out the possibility of foul play? Generally, I don’t think so, for the reasons given below.

The DWI Year in Review, Part II
Whether there was probable cause to arrest the driver is a hotly litigated issue in cases involving impaired driving. Unfortunately, there aren’t all that many appellate opinions addressing the hard calls in this area. Instead, many resemble State v. Tappe, 139 N.C. App. 33, 38 (2000), which found probable cause based on “defendant’s vehicle crossing the center line, defendant’s glassy, watery eyes, and the strong odor of alcohol on defendant’s breath.” It is difficult to imagine a court ruling otherwise. A few years ago, the court of appeals decided a tougher issue in Steinkrause v. Tatum, 201 N.C. App. 289 (2009), aff’d, 364 N.C. 419 (2010) (per curiam), concluding that the “fact and severity” of the defendant’s one-car accident coupled with a law enforcement officer’s observation that she smelled of alcohol provided probable cause to believe she was driving while impaired. This past year, the court issued two significant published opinions on probable cause for impaired driving—State v. Overocker, __ N.C. App. __, 762 S.E.2d 921 (Sept. 16, 2014), and State v. Townsend, __ N.C. App. __, 762 S.E.2d 898 (Sept. 16, 2014),—as well as opinions in State v. Veal, __ N.C. App. __, 760 S.E.2d 43 (July 1, 2014), and State v. Wainwright, __ N.C. App. __, 770 S.E.2d 99 (2015), better defining the threshold for reasonable suspicion of DWI.

Nystagmus in the Courts
Jurisprudence over whether officers may testify about defendants’ horizontal gaze nystagmus (HGN) in impaired driving trials has failed to follow a smooth path. In fact, one could fairly note that more than the defendants’ eyes have jumped all over the place. First, our state supreme court said that testimony from a police officer regarding the results of an HGN test performed by the defendant was inadmissible without the evidence establishing that the HGN test was scientifically reliable. State v. Helms, 348 N.C. 578 (1998). The legislature responded by amending Rule 702 in a manner that, according to the court of appeals, “obviat[ed] the need for the state to prove that the HGN testing method is sufficiently reliable” and permitted law enforcement officers trained in administering the HGN test to testify about the defendant’s performance. State v. Smart, 195 N.C. App. 752 (2009). But forget admissibility for a moment. Does HGN evidence prove anything much anyway? A recent unpublished case from the court of appeals indicates that it does not.