A large-scale search is underway in Bunbury Regional Prison after suspected illicit drugs, syringes and needles were found stashed in a metal workshop.
Corrective Services Commissioner Tony Hassall described the find as "significant", after the search by local intelligence and staff.
“Substances have been found, they have been tested by the police and we are not sure what they are yet, some needles and some packages - so, some illicit contraband in the prison,” Hassall said to 6PR Mornings presenter Gareth Parker.
Mr Hassall said the prison had been put in lock down, with 50 additional staff on site to aid the ongoing search.
“We are speaking to a number of prisoners on site ... and it is all subject to an investigation,” he said.
“There was a locked bag containing needles and syringes. There were some needles in some foil, there was some brown liquid and some what we call “green vegetable matter” we don’t know what it is.”
Mr Hassall said drug detection dogs were assisting while the entire jail was being searched.
Prisoners involved could be possibly relocated to a different prison, receive a changed security classification and impose a ban on some visitors.
Concerns for missing man last seen in Medina
Man charged after slashing victim's neck with glass in Madora Bay
Rockingham disability accommodation and social housing refurbished thanks to State Government grant
Local fishers asked to have their say on extending crabbing season closure, simplifying bag and boat limit rules
Detectives hunt driver who reversed into Mandurah tobacco store
Mandurah Crab Fest boasts huge range of free, family friendly entertainment
Fuel prices surge in Perth, Mandurah
Teen boys charged over Mandurah burglaries
Tragic update in search for missing man Robert Snyder