New AAA Study Debunks Proposed Michigan Marijuana Driving Bills
The Associated Press reported on a new study by the American Automobile Association (AAA) which seems to contradict the nature of some bills offered in the Michigan legislature that propose new testing methods to ensnare marijuana users who drive. The study found drugged driving laws which create a threshold limit for THC-blood content, like one proposed by Michigan legislators, are just not scientifically valid.
The AP article leads with the following statement:
Six states that allow marijuana use legal tests to determine driving while impaired by the drug that have no scientific basis, according to a study by the nations largest automobile club that calls for scrapping those laws.
AAA scientists claimits not possible to set a blood-test threshold for THC which reliably determines impairment.There is understandably a strong desire by both lawmakers and the public to create legal limits for marijuana impairment in the same manner we do alcohol, said Marshall Doney, AAAs president and CEO. In the case of marijuana, this approach is flawed and not supported by scientific research.
Those six states where these laws are already on the books are Washington State (5 nanogram per ml of blood as a per se limit), Nevada (2 nanograms), Montana (5 nanograms), Ohio (2 nanograms), Pennsylvania (1 nanogram) andColorado (a reasonable inference law set at 5 nanograms).
Two bills from Michigan House Rep. Peter Lucido (R-Shelby Township) would add Michigan to that list. HB 4357 specifically states a 5 nanogram per ml of blood limit for Michigan drivers. Introduced on March 18, 2015, the bill carries no cosponsors and has never been active since introduction.
Lucidos second bill is HB 5024, which also has no cosponsors. It would create a governor-appointed panel to conduct a broad review of the scientific literature and from that research, deliver to the House a number of nanograms of THC beyond which a drivers ability to operate a car is impaired in a criminal way. Introduced in October of 2015 it passed the House by a vote of 107-1 and was sent to the Senate Judiciary Committee.
The bill pre-supposes that a THC nanogram threshold is definable, which the AAA study claims is not. Lucidos plan forces the scientists to skip the part where they decide IF the number matters, and then evaluating where it should be.
This is backwards science, I said in an MLive article. That same writing carried a quote fromMark A. R. Kleiman, a New York University professor. A law against driving with THC in your bloodstream is not a law you can know you are obeying except by never smoking marijuana or never driving, he said.
Paul Armentano of national NORML authored an Op-Ed piece published by MLive on May 11 in which he said:
The presence of low levels of THC in blood is an inappropriate and inconsistent indicator of psychomotor impairment. No less than theNational Traffic Highway Safety Administration agrees, acknowledging, It is difficult to establish a relationship between a persons THC blood or plasma concentration and performance impairing effects. It is inadvisable to try and predict effects based on blood THC concentrations alone.
The House Fiscal Agency said his program would cost $10 million and take ten years. Lucido told MLive that he wants it done in a single year,
In that same article Lucidoproclaimed that his Committee will be the first to discover the magic number of nanograms that impair driving, even before the science starts.
Spoiler alert, theyre not going to find it, saidChris Lindsey, Senior Legislative Analyst at the Marijuana Policy Project in Washington D.C. The MPP is opposed to per se driving limits.
What about those other six states that studied this issue before deciding on a threshold limit?
They pulled that number out of their ass, Rep. Lucido told the Courthouse News Service.
MLive quoted Rep. Lucido as he discussed the need to have a strong scientific basis before conducting the study.
He believes Michigan can be a pioneer and the first state to set a limit backed by science.
If we dont get it correct, credibility wise, whats the point? he said.
Rep. Jeff Irwin (D-Ann Arbor) told The Compassion Chronicles, Lucidos bill is to study the question and, if it passes, the information in this study should be included. The study does suggest that Joness bill, which starts roadside swabs without any scientific basis, should be shelved until science can establish a defensible threshold for impairment.
The Jones bill mentioned by Rep. Irwin, SB 207,is tie-barred to a bill by Sen. Casperson, SB 434. Together they would institute a roadside oral swab test for the presence of THC and ...
