15-minute observation gap leads to reduced charge
The State charged a Class B misdemeanor DWI after a single-vehicle traffic stop near State Highway 121. The breath operator's affidavit reflected a continuous observation period, but a careful review of timestamps on the intoxilyzer slip and the operator's certification log showed a gap of approximately 15 minutes during which the operator left the room to take a phone call. We moved to suppress the breath result under Code of Criminal Procedure Article 38.23 (Texas exclusionary rule) on the ground that the State could not establish compliance with 37 TAC § 19.4 (Texas Breath Alcohol Testing Regulation continuous-observation requirement).