DUI

PA Court Interprets “Two Hour Rule” for Blood Test Admissiblity in DUI Cases

In a recent decision that impacts DUI prosecutions across Pennsylvania, the Pennsylvania Supreme Court issued important guidance on how the Commonwealth can prove a “highest rate of alcohol” DUI offense when the exact time of driving is uncertain. The case, Commonwealth v. Starry, 19 WAP 2019, addressed how blood alcohol content (BAC) test results obtained… view more

PA Court Upholds DUI Drug Conviction Despite Improper Testimony

The Pennsylvania Superior Court recently issued a published opinion in Commonwealth v. Greene, reaffirming that police officers’ improper “expert” opinions at trial may be harmless error when other evidence overwhelmingly supports a conviction. The case offers important lessons for both defense attorneys and drivers facing DUI drug charges in Pennsylvania. The Facts: Traffic Stop Leads… view more

PA Court Tosses DUI Conviction Due to Improper Police Testimony

Commonwealth v. Gause, 164 A.3d 532 (Pa. Super. 2017) In a significant win for due process and evidentiary standards, the Pennsylvania Superior Court vacated a York County man’s DUI conviction after finding that police improperly offered “expert-like” testimony without the proper qualifications. The Traffic Stop and DUI Charges In Commonwealth v. Gause, police stopped Gause… view more

PA Court Overturns DUI Conviction After Judge Denies Defense Expert Witness Testimony

The Pennsylvania Superior Court recently vacated a York County woman’s convictions for Driving Under the Influence (DUI) and Endangering the Welfare of a Child (EWOC) after ruling that the trial court improperly excluded expert testimony that could have helped her defense. This case serves as a crucial reminder that, even in DUI and drug-related cases,… view more

PA Court Rules Medical Marijuana Use Can Result in DUI Charges

In a landmark 2022 decision, the Pennsylvania Superior Court ruled that legal medical marijuana users can still be charged with DUI under state law—even without evidence of impairment. This case, Commonwealth v. Stone, clarified the legal conflict between Pennsylvania’s Medical Marijuana Act (MMA) and the state’s Driving Under the Influence (DUI) laws. 🚗 Case Background:… view more

Silence Deemed a Refusal of Blood Test in PA DUI Case

The Pennsylvania Commonwealth Court addressed a key issue in DUI enforcement: Can silence be considered a refusal to submit to a chemical test after a DUI arrest? In Myers v. Department of Transportation, 33 C.D. 2022 (decided March 20, 2024), the court held that silence—following proper reading of the DL-26 chemical test warning—does, in fact,… view more

PA Court Rules DUI Blood Draw Law In Accident Case Unconstitutional

In a major decision that reshapes DUI enforcement in Pennsylvania, the Pennsylvania Supreme Court ruled on June 17, 2025, in Commonwealth v. Hunte (No. 16 MAP 2023), that warrantless blood draws from unconscious DUI suspects are unconstitutional under both the U.S. and Pennsylvania Constitutions. Key Takeaway The Court struck down Section 3755 of the Pennsylvania… view more