We've updated our Privacy Policy to make it clearer how we use your personal data.

We use cookies to provide you with a better experience, read our Cookie Policy

Leo Bear-McGuinness

Science Writer

Contact Us


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 degree in biology from Newcastle University and a master's degree in science communication from the University of Edinburgh.

Latest Content From Leo Bear-McGuinness

California Researchers Develop a New Oxidation Test for Cannabis Breathalyzers

Although no such breathalyzer has yet been made, the researchers claim their test is inexpensive and effective enough to hold promise for future practical devices.


‘Largest Ever Cannabis Research Grant’ Will Fund Study Testing Whole-plant CBD Against Single-extract CBD

The $9 million donation will help fund research at Harvard Medical School into how full-spectrum cannabis products differ to those made from a single extracted compound.


New Zealand Finalizes its Cannabis Regulations Ahead of Referendum

After months of deliberation, ministers and government officials have finalized the legalisation measures that will be put to the country in a referendum this September.


US Cannabis Research Is Violating International Law, DEA Memo Reveals

The Department of Justice advised the DEA to take full responsibility of marijuana cultivation back in 2018, the memo reveals.


Denver Creates a Marijuana Group to Advise on Equity and Licensing Policies

The new group will consider whether Denver should allow cannabis deliveries and how the local sector can better involve those from communities disproportionately harmed by marijuana prohibition.


Amid the Coronavirus Lockdown, Cannabis Sales Were Down This 4/20

Although more marijuana was legally purchased in the US during the unofficial holiday period than the week prior, revenue was still lower than figures seen in previous years.


Testing Costs Account for 10% of Legal Cannabis Prices in California, Study Finds

The cost of destroying cannabis that fails such tests makes up the biggest share of this testing expense.


AOAC Approves Method for Measuring THC in Hemp

The validation will now let labs evaluate hemp for THC on a dry-weight basis, as required by the 2018 Farm Bill.


How Can Cannabis Labs Help With Covid-19 Testing? A Q&A With Ben Orsburn

Despite being more experienced in testing cannabis than Covid-19, the labs are still kitted with the right equipment and expertise to help make a difference during this pandemic.


California Launches $30 Million Cannabis Equity Fund

Cannabis entrepreneurs from communities disproportionately impacted by cannabis criminalization will soon be able to apply to their local jurisdictions for the grant.