There has been a huge increase in the number of drugs finds in Maghaberry prison, County Antrim, over the past two years.
Figures obtained by the BBC show that there was an increase of more than 400% in the number of drugs finds in 2013, compared to 2012.
There were 452 drugs finds in the high-security jail in 2013, compared to 87 in 2012.
During 2014, there were then 224 drug finds in Maghaberry prison.
Each drug find can involve the discovery of multiple quantities of drugs.
Maghaberry is the largest prison in Northern Ireland with just under 1,000 prisoners.
The Northern Ireland Prison Service said that the rise could be explained by improved targeting of searches.
The drug most seized in the prison was diazepam, along with other illicit prescription drugs, although cannabis, cocaine and heroin were also among the drugs seized.Watch About Scout (2015) Full Movie Online Streaming Online and Download
A recently released prisoner told the BBC that he had become hooked on drugs while in prison, and that drugs were easily available.
“For a gram of heroin on the street that we’d pay £25 for, in the jail you’re getting £100 cash in your hand,” the former inmate said.
“That’s the main choice of drug – the prison’s awash with it; heroin and blue tablets – diazepam.”