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What’s the Difference Between OWI and OUIL?
OWI and OUIL are acronyms describing two different ways a prosecutor can prove the crime of drunk driving in Michigan. The acronym OWI refers to the more general crime, while OUIL describes a specific way to prove a specific crime which is that of drunk driving. In other words, the acronym OUIL relates to a certain kind of proof at trial. Either way, both OWI and OUIL ultimately relate to the same crime.
This crime can be found in Michigan law at MCL 257.625, which sets forth all the different ways intoxicated driving can be proved. The general term for intoxicated driving is OWI which stands for operating while intoxicated. The crime of OWI really consists of several different crimes depending on the type of intoxicating substance present. Thus, OWI can describe intoxicated driving crimes involving alcohol, prescription drugs, and non-prescriptions drugs like cocaine or even marijuana.
When it comes to intoxication by alcohol, the acronym OUIL applies to one of the two ways the crime of OWI can be proved in court. This stands for Operating Under the Influence of Liquor. To prove this crime, the prosecutor will often use what is called the observation evidence. This usually relates to all the evidence other than the breath or blood test. Observation evidence is usually broken down into the parts, and these come from the three phases of the drunk driving investigation.
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