What tests may an arresting officer request that you submit to if you are arrested for driving under the influence of alcohol or drugs?

Several tests will be requested to subjectively determine your impairment or lack of. Different agencies administer tests such as reciting the alphabet to the common nose touch and walking a line, which may be followed up by a breathalyzer and a possible blood draw if a fatality is involved or you are driving with a CDL. The latter tests are usually mandatory for fatalities in most states. I work as a paramedic for the F.D. and have seen many needless deaths due to driving impairment, so avoid a possible tragedy by not driving while impaired or distracted. I might advise you to refuse the tests and take your chances in court. Knowledge of your state law is paramount in making this decision. A DUI can follow you forever, especially when applying for a government job. My brother in law is a deputy, and I was surprised when he ran a stop sign in a parking lot. I called him out on it, and he said if the back of the sign was not officially stamped by the state it was not enforceable. So, know your rights and laws to make an informed decision on any traffic violation. Be safe.