What is a critical component in determining impairment leading to a DUI charge in Arizona?

A critical component in determining impairment leading to a DUI charge in Arizona is the standard that focuses on whether the ability to drive is impaired to the slightest degree. This standard reflects the legal framework established within Arizona's DUI laws, which emphasizes that drivers can be charged with DUI not just at higher levels of impairment but also where any impairment in their ability to operate a vehicle safely is evident.

This means that even if a driver's impairment is minimal, they can still be subject to charges if they are unable to drive safely compared to how an unimpaired person would be able to. Such an interpretation places a significant burden on driving performance rather than solely relying on measurable blood alcohol content (BAC) or other factors. Thus, the essence of Arizona's DUI law is to ensure safety on the roads, holding drivers accountable for any level of impairment.