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  • Smith’s Criminal Case Compendium is no longer available. Effective June 2025, personnel changes and resource limitations have made it impossible for us to maintain the Compendium to the standard of excellence that the School of Government strives to achieve. We appreciate those who have used and supported the Compendium over the years. We will continue to publish and archive summaries of North Carolina appellate cases concerning criminal law on the North Carolina Criminal Law Blog.

  • Smith’s Criminal Case Compendium is no longer available. Effective June 2025, personnel changes and resource limitations have made it impossible for us to maintain the Compendium to the standard of excellence that the School of Government strives to achieve. We appreciate those who have used and supported the Compendium over the years. We will continue to publish and archive summaries of North Carolina appellate cases concerning criminal law on the North Carolina Criminal Law Blog.

  • Smith’s Criminal Case Compendium is no longer available. Effective June 2025, personnel changes and resource limitations have made it impossible for us to maintain the Compendium to the standard of excellence that the School of Government strives to achieve. We appreciate those who have used and supported the Compendium over the years. We will continue to publish and archive summaries of North Carolina appellate cases concerning criminal law on the North Carolina Criminal Law Blog.
  • Smith’s Criminal Case Compendium is no longer available. Effective June 2025, personnel changes and resource limitations have made it impossible for us to maintain the Compendium to the standard of excellence that the School of Government strives to achieve. We appreciate those who have used and supported the Compendium over the years. We will continue to publish and archive summaries of North Carolina appellate cases concerning criminal law on the North Carolina Criminal Law Blog.
  • Smith’s Criminal Case Compendium is no longer available. Effective June 2025, personnel changes and resource limitations have made it impossible for us to maintain the Compendium to the standard of excellence that the School of Government strives to achieve. We appreciate those who have used and supported the Compendium over the years. We will continue to publish and archive summaries of North Carolina appellate cases concerning criminal law on the North Carolina Criminal Law Blog.
  • Smith’s Criminal Case Compendium is no longer available. Effective June 2025, personnel changes and resource limitations have made it impossible for us to maintain the Compendium to the standard of excellence that the School of Government strives to achieve. We appreciate those who have used and supported the Compendium over the years. We will continue to publish and archive summaries of North Carolina appellate cases concerning criminal law on the North Carolina Criminal Law Blog.

Smith's Criminal Case Compendium

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State v. Armstrong, 203 N.C. App. 399 (Apr. 20, 2010)

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Evidence > Opinions > Expert Opinions > Impaired Driving, HGN & DRE

In a DWI/homicide case, the trial court erred by allowing a state’s witness to testify about ingredients and effect of Narcan. Although the state proffered the testimony as lay opinion, it was actually expert testimony. When the state called the witness, it elicited extensive testimony regarding his training and experience and the witness testified that Narcan contains no alcohol and has no effect on blood-alcohol content. Because the witness offered expert testimony and because the state did not notify the defendant during discovery that it intended to offer this expert witness, the trial court erred by allowing him to testify as such. However, the error was not prejudicial.

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