Answer: On the side of the road they can give you what’s called an Alco Sensor, which is a portable breath-testing device. It’s voluntary. You can refuse to do the Alco Sensor. It’s a field sobriety test; it’s not the state-administered chemical stest. The Alco Sensor gives a number, and it will give a blood alcohol level, but that number is not admissible in court. So, if you blow into it, it will give them a kind of an idea of what your alcohol concentration is, but it is not admissible against you in court. They can just say it was positive or negative. But the officers will base a lot of their opinion on what number they see, even though it’s not admissible.