306.116. 1. Any person who operates a vessel upon the Mississippi River, Missouri River or the lakes of this state shall be deemed to have given consent to, subject to the provisions of sections 306.111 to 306.119, a chemical test or tests of such person's breath, blood, urine, or saliva for the purpose of determining the alcohol or drug content of such person's blood if arrested for any offense arising out of acts which the arresting law enforcement officer had reasonable grounds to believe were committed while the person was operating a vessel upon the Mississippi River, Missouri River or lakes of this state in violation of section 306.111 or 306.112. The test shall be administered at the direction of the arresting law enforcement officer whenever the person has been arrested for the offense.
2. The implied consent to submit to the chemical tests listed in subsection 1 of this section shall be limited to not more than two such tests arising from the same arrest, incident, or charge.
3. The person tested may have a physician, or a qualified technician, chemist, registered nurse, or other qualified person of such person's choosing and at such person's expense administer a test in addition to any administered at the direction of a law enforcement officer. The failure or inability to obtain an additional test by a person shall not preclude the admission of evidence relating to the test taken at the direction of a law enforcement officer.
4. Upon the request of the person who is tested, full information concerning the test shall be made available to such person.