Antonio Loguancio, 40, is wanted by police for breaching that order, as well as for questioning over assaults in the West Heidelberg area on February 23.

Loguancio, nicknamed Mad Dog, was jailed for a maximum of 12 years in 1998 over a 19-month spree of rape and violence. Some acts were so vile that they have never been reported publicly.

Loguancio was released early from prison in 2008, but was charged soon after with weapons and ammunitions offences, and was locked up for breaching parole.

News Limited reported in 2011 that Loguancio had shot arrows at his rape victim, choked her with a belt and had forced her to her knees, pulled her head back by her hair and told her she was dead while armed with a pump-action shotgun.

Loguancio has a long criminal history, including six counts of rape, five of intentionally causing injury, four of making threats to kill and 12 of common assault.

He reportedly broke his own fingers on a desk in an interview room to avoid finger printing.

Loguancio was convicted 35 times and appeared before court 12 times between 1991 and his arrest for the rape offences in April 1997. He was then charged with 32 offences relating to those matters that dated back to September 1995.

He was found guilty of five counts of intentionally causing injury, four counts of threatening to kill, 12 counts of common assault, two counts of reckless conduct endangering life, six counts of rape and one count of reckless conduct endangering a person. At the time he was sentenced he was already serving a prison term.

Police alleged that Loguancio’s victim was raped and beaten daily for eight months between August 1996 and his arrest.

During an unsuccessful appeal in March 2000, Justice Frank Callaway said he would not outline the detail of Loguancio’s offences because of their seriousness.

‘‘Some of them were of such a depraved character that a description in a judgment that will go on the internet and may be reported would be contrary to public morals,’’ he said.

‘‘If the rapes and acts of reckless endangerment are not described, there is little point in particularising the counts of intentionally causing injury, threatening to kill and common assault.

‘‘It is sufficient to say that the applicant raped the complainant six times on four separate occasions and committed numerous offences of violence or threatened violence against her.’’

Justice Callaway said Loguancio had beaten his victim black and blue, threatened her with death if she tried to leave, strangled her with a belt on several occasions and that she could not recall all the beatings because there were so many.

‘‘The offences ... were numerous and barbaric,’’ Justice Callaway said.

A former detective once described Loguancio as the most dangerous man he had ever met, and a prison source told News Limited in 2007 that Loguancio was "the most dangerous man in Victoria".

A warrant for Loguancio's arrest was issued on Thursday morning after he breached the conditions of his supervision order, and a subsequent police search has failed to locate him.

It is believed he may be in the Heidelberg, inner metropolitan or Dandenong area.

Police warned that members of the public should not approach him but immediately contact triple-0 or Crime Stoppers on 1800 333 000 or via www.crimestoppers.com.au.