Here's why:
* Convenience: Breathalyzers are portable, relatively inexpensive, and can be administered quickly, making them suitable for roadside testing.
* Accuracy: While not perfect, breathalyzers are generally accurate in measuring blood alcohol content (BAC) and have been refined over time.
* Widely Available: Law enforcement agencies around the world use breathalyzers for DUI testing.
* Non-Invasive: Breathalyzers are non-invasive, meaning they don't require drawing blood.
However, it's important to note that other methods exist, such as:
* Blood tests: These provide the most accurate BAC measurement but are more invasive and require laboratory analysis.
* Urine tests: These are less accurate than blood tests but can detect alcohol consumption over a longer period.
Ultimately, the choice of test will depend on the specific circumstances and legal requirements of the situation.