A Liberal backbencher has accused his own party of vilifying asylum seekers, after Coalition immigration spokesman Scott Morrison called for special ''behaviour protocols'' for those released into the community and the mandatory notification of police and residents in areas where they were housed.

Mr Morrison said the charging of a Sri Lankan asylum seeker with the alleged indecent assault of a young woman in a Sydney university dorm ''demanded'' an immediate suspension of the community release program and a review to determine new ''behavioural protocols … with clear negative sanctions for breaches''.

But Victorian Liberal backbencher Russell Broadbent said there should ''never be special categories of laws for different categories of people … the rule of law should apply to all and we should not set some people apart''.

''This kind of vilification of asylum seekers is unacceptable in this nation,'' he said.