A prisoner died after swallowing a bag of drugs smuggled into jail by his own mum.
Shaun Hughes died after suffering respiratory failure brought on by "the effects of a combination of drugs", a report by a prisons' watchdog has concluded.
The 34-year-old was sentenced to three years and four months at HMP Northumberland in January 2015 after being convicted of burglary, driving offences, and drug possession.