Meanwhile, the SNP Government has been blasted for failing to get to grips with a drugs crisis within Scotland’s prisons after new figures revealed a rising number of drug seizures behind bars.

Criminals are getting smarter with how to get illicit substances into jails, using the likes of drones and drug-soaked envelopes and items.

Drones were used 65 times to fly drugs into jails in 2024 – when six inmates died from overdoses. There have been dozens of hospitalisations reported in the last few months due to drug misuse as guards struggle to tackle widespread abuse of illegal substances such as heroin, street valium and cocaine.

The Scottish Prison Service confirmed in a freedom of information response the number of inmates who were caught with drugs had increased by almost 1,000 in just two years. It rose from 1,448 in 2022 to a high of 2,212, which was also up from 2023 when there were 2,188 incidents reported and 5,848 overall in the last three years.

Prisoners at HMP Low Moss were the worst offenders in 2024, with 754 reported. That jail was followed by HMP Addiewell, HMP Edinburgh, HMP Perth and HMP Shotts rounding out the top five.

“Whether it’s via drug-soaked mail or drones, the Nationalists are always several steps behind the criminals when it comes to intercepting narcotics. They need to provide dedicated prison officers with the resources required to tackle this growing crisis – including more sniffer dogs, better technology and more robust security.”

Drug use is reportedly widespread in some of the country’s most notorious jails. Five prisoners were taken to hospital on Christmas Day, with 35 inmates at HMP Glenochil being identified as being under the influence. It is thought the drugs were delivered to the jail using illegal drones, with weapons and mobile phones also seized.

Overall drug incidents so far this year total more than 1,100. And they are blamed for a spike in overdose emergencies. Paramedics received 109 call-outs in 2023/24 — up 76% on the previous year. In a bid to tackle this, grilles are being installed at some sites, but will cost £8m to roll out everywhere.

The Scottish Prison Service have had to deal with a stagnant budget from the Scottish Government in recent years which has not been enough to upgrade Victorian-era jails.

A Scottish Prison Service spokesperson said: “Any attempt to bring illicit substances into our establishments, poses a significant threat to the health and wellbeing of those in our care. Our staff work hard to keep our establishments safe and secure, using all technological and intelligence tools available to prevent this wherever possible. We continue to work with Police Scotland, and other partners, to take action against those who attempt to breach our security.”