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To administer the test, a user simply has to mix the chemicals with a particle of the suspected substance; if the chemicals turn purple, this indicates the possibility of marijuana. But the color variations can be subtle, and readings can vary by examiner. It was adopted in the 1950s by the United Nations as the preferred test for cannabis ...
The Duquenois reagent is used in the Rapid Modified Duquenois–Levine test (also known as the simple Rapid Duquenois Test), which is an established screening test for the presence of cannabis. The test was initially developed in the 1930s by the French medical biochemist Pierre Duquénois (1904–1986) and was adopted in the 1950s by the ...
In 2015, the first government standards for testing were proposed in Colorado's legislature, when potency and microbial testing became mandatory in the state. [11] [12] [13] Colorado cannabis testing laboratories, such as AgriScience Labs, are regulated by the Colorado Department of Revenue's Marijuana Enforcement Division and the Colorado Department of Public Health and Environment. [14]
(The Center Square) – Even though marijuana is legal in Illinois, the state’s highest court has ruled that the smell of raw cannabis is enough for police to search a vehicle. The case stems ...
Historically, tinctures, teas, and ointments have also been common preparations. In traditional medicine of India in particular cannabis sativa has been used as hallucinogenic, hypnotic, sedative, analgesic, and anti-inflammatory agent. [23] Terpenes have gained public awareness through the growth and education of medical and recreational cannabis.
Cannabis also has a long history of being used for medicinal purposes, and as a recreational drug known by several slang terms, such as marijuana, pot or weed. Various cannabis strains have been bred, often selectively to produce high or low levels of tetrahydrocannabinol (THC), a cannabinoid and the plant's principal psychoactive constituent .
The original Yippie smoke-in, first held in 1971 to protest the arrest of Dana Beal on marijuana charges, now the longest running annual cannabis rights "protestival", Marijuana Harvestfest, or Madison Hempfest, as it is also known, was organized by Ben Masel until his death in 2011. The multi-day event has an estimated attendance of 4,000 ...
Cannabis smoking (known colloquially as smoking weed or smoking pot) is the inhalation of smoke or vapor released by heating the flowers, leaves, or extracts of cannabis and releasing the main psychoactive chemical, Δ 9-tetrahydrocannabinol (THC), which is absorbed into the bloodstream via the lungs.