When does the preparation for testimony begin?

The preparation for testimony begins at the time of initial observation because this is when an officer first perceives and documents the observed behavior, circumstances, and any relevant facts that will later inform their testimony in court. This initial observation is crucial as it lays the foundation for the case and ensures that all pertinent details are accurately recorded. The officer's notes from this period become critical evidence and can influence the prosecution's strategy, making it essential to focus on gathering and recalling information effectively from the start. This proactive approach enables the officer to create a comprehensive narrative that supports their findings and assessments, particularly in DUI cases involving HGN and other sobriety tests.