He is considered dangerous and should not be approached.
"He has known links to the Killer Beez gang."
Poulgrain was among a group of three prisoners who assaulted notorious double-killer Graeme Burton at Auckland's Paremoremo - the prison that houses the country's most dangerous criminals.
Poulgrain stabbed Burton at least seven or eight times during the assault.
Justice Geoffrey Venning sentenced Poulgrain to three years and nine months' imprisonment for his role in the brutal attack.