Why is a breath test more favorable than a blood test for determining BAC?

A breath test is indeed more favorable than a blood test for determining blood alcohol concentration (BAC) primarily because it is less invasive and provides immediate results. The non-invasive nature of a breath test means that it does not involve needles or the collection of bodily fluids, which can be uncomfortable for the individual being tested. This aspect makes breath tests more appealing, especially in situations such as roadside checks where quick assessments are necessary.

In addition, breath tests deliver results almost instantaneously, allowing law enforcement officers to make immediate decisions based on the BAC reading. This immediacy is particularly beneficial in preventing further consumption of alcohol and ensuring safe driving behaviors. The efficiency of obtaining results quickly often outweighs the need for more comprehensive methods like blood tests, which require more time for analysis at a laboratory.

Considering the other options, while breath tests are generally easier and quicker to administer (the first point), and they may require less equipment than fully equipped lab settings for blood tests, the primary advantage focusing on less invasiveness and immediacy provides a clearer understanding of why breath tests are favored in various scenarios, especially in law enforcement and roadside situations.