What are 'chemical tests' as they are used in a DUI arrest?

What are 'chemical tests' as they are used in a DUI arrest?

Neil Shouse (Defense Attorney) gives expert video advice on: What are 'chemical tests' as they are used in a DUI arrest?; What is the 'implied consent law'?; When does a motorist have the right to refuse a chemical test during a DUI arrest? and more...

Chemical tests in a DUI arrest would be either a breath test, a blood test or a urine test that a suspect is given following their arrest, which will yield a particular reading as to their BAC level.