Government efforts to prohibit items from immigration detention centres have been labelled cruel by opponents and could be blocked in parliament.
Mobile phones and prescription medications are among the items opponents fear could be banned under legislation put forward by Immigration Minister Peter Dutton.
The legislation proposes to ban drugs, weapons and child exploitation material, as well as anything the minister determines pose a health, safety or security risk.
Legal experts have suggested that could extend to mobile phones or medications.
Independent MP Cathy McGowan has labelled the proposed laws poor and disproportionate.
