Murchison police are urging people not to take contraband items, such as tobacco, into Dhurringile Prison.
Contraband items are classified as anything introduced or found in a prison that is not permitted.
Leading Senior Constable Ricky Keast said since Tuesday last week two people had allegedly tried to take tobacco into the prison.
He said last Tuesday about 3.45pm a NSW woman, 42, was allegedly seen placing tobacco at the boundary fence inside the prison grounds.
Ldg Sen Const Keast said police spoke to her and issued her with a pre-charge diversion meaning she must donate a sum of money to a non-profit organisation.
A Broadmeadows man, 40, was allegedly caught inside the prison with tobacco on Wednesday by staff.
He was spoken to by police for allegedly trying to leave tobacco inside the prison.
Ldg Sen Const Keast said the man would receive a summons to court for entering a prison without authorisation, taking contraband into a prison and for riding an unregistered motorcycle.
Ldg Sen Const Keast said if people were caught with contraband inside a prison they could find themselves living in a prison for up to two years.
■For a list of items that are prohibited from being taken into Victorian prisons, go to: www.corrections.vic.gov.au/home/prison/visiting+a+prisoner/prohibited+items/