As used in this Chapter, the following terms shall have these
prescribed meanings:
INTOXICATED CONDITION
A person is in an "intoxicated condition" when he/she is under the influence of alcohol, a controlled substance
or drug, or any combination thereof.
LAW ENFORCEMENT OFFICER or ARRESTING OFFICER
Includes the definition of Law Enforcement Officer in Subdivision
(17) of Section 556.061, RSMo., and military Policemen conducting
traffic enforcement operations on a Federal military installation
under military jurisdiction in the State of Missouri.
A person commits the offense of "driving while intoxicated" if he/she operates a motor vehicle while in an intoxicated or drugged
condition. No person convicted of or pleading guilty to the offense
of driving while intoxicated shall be granted a suspended imposition
of sentence for such offense, unless such person shall be placed on
probation for a minimum of two (2) years.
An arrest without a warrant by a Law Enforcement Officer, including a uniformed member of the State Highway Patrol, for a violation of Section
342.020 or
342.030 is lawful whenever the arresting officer has reasonable grounds to believe that the person to be arrested has violated the Section, whether or not the violation occurred in the presence of the arresting officer and when such arrest without warrant is made within one and one-half (1½) hours after such claimed violation occurred, unless the person to be arrested has left the scene of an accident or has been removed from the scene to receive medical treatment, in which case such arrest without warrant may be made more than one and one-half (1½) hours after such violation occurred.