Inmates in jails across New South Wales will be banned from receiving underwear and socks in the mail, as part of a crackdown on drug smuggling.
It comes after authorities found drugs sewn into the lining of underwear and socks sent to prisoners as gifts.
Minister for Corrections, David Elliott, said the restrictions were necessary to prevent contraband entering jails.
"In the last 18 months there's been at least nine occasions where prison authorities have found underwear is being used as a courier for drugs to get into jail and that in my mind creates a pattern that needs to be arrested."
From Monday, prisoners must wear prison-issued socks and underwear.
They can only purchase brand-name underwear and socks through the prison 'buy-ups' scheme, a list of items inmates can purchase using their wages, or money deposited in their account.
Inmates can spend up to $100 per month on items such as clothing and toiletries.
