Victorian prisons use ion scanners at entry points to detect microscopic traces of illicit substances. Many visitors are unaware of how sensitive these scanners are, and even those who haven’t used drugs can receive a positive reading. Here’s everything you need to know to prevent unnecessary issues.
What is an ion scanner & how does it work?
An ion scanner is a highly sensitive device that detects trace amounts of drugs, explosives, or other substances. It works by swabbing clothing, hands, and belongings to identify residue.
Consequences of a positive reading
- Immediate refusal of entry – Visitors testing positive may not be allowed inside.
- Strip search requirement – If you agree to a strip search, you will only be allowed a restricted box visit (1 hour, no physical contact).
- 6-month visit ban – Refusing a strip search may result in a 6-month visitation ban.
Common causes of false positives
- Handling banknotes (which often carry drug residue)
- Secondhand exposure (e.g., being around smokers)
- Prescription medications (certain drugs may trigger false positives)
- Work-related exposure (e.g., handling chemicals or pharmaceuticals)
How to avoid false positives
- Wear freshly washed clothes
- Avoid handling cash before your visit
- Wash your hands thoroughly before arriving
- If you take prescription medication, carry a doctor’s note
Understanding how ion scanners work helps you avoid unnecessary disruptions when visiting someone in custody. From your clothing to your exposure to everyday items, the smallest traces can matter. FairThreads helps reduce risk by providing clean, prison-compliant clothing that aligns with Corrections Victoria’s standards. You can visit with confidence and peace of mind.