There have been more than 400 drug seizures inside Irish prisons already this year, on top of nearly 1 thousand in 2014.
(A range of weapons seized inside Mountjoy Prison in Dublin)
Overall, the most common drugs being found are tablets and prescribed medication - like valium - in a shift away from injected drugs, like heroin.
A new confidential phone line has been set up to try to crack down on illegal trafficking.
WATCH: An innocent looking pen caught being smuggled into Mountjoy Prison with a dangerous blade inside @TodayFMNews pic.twitter.com/0sGVLV2sg9
— Helen Vaughan (@HelenVaughan24) July 6, 2015
Helen Vaughan reports.
