What does "user verification" ensure in the context of the Intoxilyzer 9000?

User verification in the context of the Intoxilyzer 9000 ensures that only trained operators are authorized to use the device. This verification process is crucial because it upholds the integrity and reliability of the testing procedure. By restricting access to trained individuals, the system minimizes the risk of improper usage, which could lead to inaccurate results and legal repercussions. The training equips operators with the necessary knowledge to conduct tests correctly, interpret results appropriately, and follow protocols effectively, thereby ensuring that the device performs as intended and produces trustworthy outcomes.