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Home > About Us > Leo Bear-McGuinness

Leo Bear-McGuinness

Science Writer & Editor

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Leo joined Analytical Cannabis in 2019. From research to regulations and analysis to agriculture, his writing covers all the need-to-know news for the cannabis industry. He holds a Bachelor's in Biology from Newcastle University and a Master's in Science Communication from the University of Edinburgh.

Latest content from Leo Bear-McGuinness

THC-O-Acetate Isn’t a Psychedelic, Say Consumers

THC-O acetate isn’t as trippy a chemical as the hearsay suggests. That’s the main finding of a survey of self-declared THC-O acetate consumers.


Oregon Regulator Recalls Flower Due to Arsenic Risk

The flower was harvested before March 1, the date when heavy metals testing became compulsory for cannabis product in Oregon.


Inter-State Cannabis Testing is Too Inconsistent, Say Americans For Safe Access

Not all states require cannabis to be tested for the same contaminants and qualities – an inconsistency that could be putting the health of consumers at risk, according to a new report from the ASA.


Many Cannabis Crops Grown in Washington County Are Contaminated With Banned Pesticide, Regulator Finds

The regulator says it has placed a hold on each of the contaminated products and will work with the licensees to ensure the identified products are destroyed.


Monkeys Fed THC Have Altered Placentas, Study Finds

The researchers say their findings could help inform public health policies regarding pregnancy and cannabis use.


Medical Cannabis Legalization Not Linked With Fewer Opioid Prescriptions, Study Finds

US states that legalize medical cannabis don’t tend to see a decline in opioid prescriptions for non-cancer pain. That’s the main finding of a new study from researchers at Weill Cornell Medicine.


FDA and FTC Sends Warning Letters to Delta-8 THC Brands Over Their Child-Friendly Packaging

The FTC say this kind of marketing is “reckless” as the emulated products are appealing to children.


Micro Mass Spec in the Cannabis Field: A Q&A With 908 Devices

Many illicit cultivators hide their operations within California’s vast woodlands, far away from prying eyes. Yet evidence of these forest farms has been spotted more and more, with the help of newer, more portable mass spectrometers like the MX908.


FDA Releases Draft Guidance For Psychedelic Drugs Research

Comments from the public and relevant professionals are welcome and will be accepted until August 25.


Oregon Regulator Recalls Cannabis Flower Due to Aspergillus and Heavy Metal Contamination

The batches were harvested between October 2022 and January 2023 by three separate cultivators.