Find out more: listen to today's Daily Sensemaker on the Observer websiteor wherever you get your podcasts
The National Crime Agency has reported that 333 fatalities across the UK in 2024 were linked to a synthetic opioid called nitazene.
But new research suggests the true number of deaths may be much higher.
How did the UK become a hotspot for a drug that can be up to 500 times as strong as heroin?
Find out in today's Sensemaker.
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