Tests tell us whether someone used marijuana in the last several days or even weeks, not whether they are under the influence at the time
CLEVELAND, Ohio — When it comes to enforcing drunken driving laws, police have a battery of tools at their disposal. Field sobriety tests, along with breath, blood, and urine tests for blood alcohol concentrations are well established indicators of a driver’s degree of intoxication.
The limitations of drug testing have come up as Ohioans vote on a Nov. 7 ballot proposal - Issue 2 - that would legalize recreational marijuana use in Ohio.Tests for cannabis don’t actually measure THC, the component of cannabis responsible for the feeling of being “high.” Shortly after THC reaches the bloodstream it is rapidly taken up in the fat cells of the brain and body, and little remains in circulation to measure.
There are a number of factors, including a person’s weight, age, gender, overall health and bodyfat composition – along with the frequency and amount of cannabis they use. Theseis no simple formula for how long a person will test positive for cannabis, or a threshold above which THC-COOH can be used to determine intoxication.
In addition, an employee who sustains injury in the workplace due to marijuana intoxication will not receive employee compensation. That said, a positive test, as stated earlier, is not the same as intoxication. The length of time a person is intoxicated from marijuana use depends a lot on how much they consumed and how they consumed it.
By contrast, drugs that are eaten first take time to move through the digestive tract, and then are metabolized by the liver before they ever make it into the blood.
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