Canberra – The most senior Roman Catholic cleric to be convicted of covering up child sex abuse was sentenced to 12 months in detention by an Australian court on Tuesday, in a landmark case welcomed by some abuse survivors as a strong warning to institutions that fail to protect children.Newcastle Magistrate Robert Stone ordered Adelaide archbishop Philip Wilson to serve at least six months before he is eligible for parole.But Wilson will not immediately go into custody. Stone will consider on August 14 whether Wilson is suitable for home detention. He could live with his sister near Newcastle.Stone found the 67-year-old cleric guilty in May in the Newcastle Local Court of failing to report to police the repeated abuse of two altar boys by paedophile priest James Fletcher in the Hunter Valley region north of Sydney during the 1970s. Wilson faced a potential maximum sentence of two years in prison.Stone said Wilson failed to act against Fletcher because he "wanted to protect the church and its image"."The whole of the community is devastated in so many ways by the decades of abuse and its concealment," the magistrate said. "We are all the poorer for what has occurred."Survivors of abuse who protested against the church outside the court on Tuesday called on Wilson to resign as archbishop. They carried signs accusing the church of hypocrisy and describing it as a "fraudulent cult".'We have made history'Peter Gogarty, a child abuse victim and advocate for fellow survivors, said he was disappointed that Wilson had walked free from court, but "there is no doubt the archbishop has received a significant sentence".But survivors remained pleased by the landmark conviction, he said."We have made history here in Australia: The highest-ranked church official to ever be brought to account for what we know was a worldwide systematic abuse of children and the concealment of that abuse," Gogarty told reporters. "So I'm content that we've done something in Australia that nobody else has been able to manage."The sentencing was another step toward holding the church to account for a global abuse crisis that has also engulfed Pope Francis' financial minister, Australian Cardinal George Pell. Some lawyers said they expect many more clerics to be charged in Australia as a result of Wilson's test case.Prosecutor Gareth Harrison last month told the magistrate Wilson must be jailed to send a message that such institutional cover-ups will no longer be tolerated.Defence lawyer Ian Temby told the court that Wilson had several chronic illnesses and might not survive a prison sentence.Australian state governments are ramping up pressure on the church to report child abuse and are legislating to prosecute priests who maintain that revelations of paedophilia made in the confessional cannot be disclosed. Wilson did not use the seal of the confession as an excuse for failing to act on allegations against Fletcher. Instead, Wilson testified that he did not recall ever hearing allegations against his fellow priest.Fletcher was arrested on unrelated child abuse charges in 2004 and died in prison of a stroke in 2006 while serving an almost eight-year sentence.A five-year national inquiry into child abuse recommended in December that priests be prosecuted for failing to report evidence of paedophilia heard in the confessional.Law vs religionAustralia's Royal Commission into Institutional Responses to Child Sexual Abuse had investigated how the Catholic Church and other institutions responded to sexual abuse of children in Australia over 90 years. A royal commission is Australia's highest form of inquiry.The inquiry heard testimony from more than 8 000 survivors of child sex abuse. Of those who were abused in religious institutions, 62% were Catholics.Francis last week accepted the resignation of Melbourne's archbishop Denis Hart, who said he'd prefer jail to telling civil authorities about any sex abuse of children that might be revealed to him in the confessional.The Vatican said the pontiff had appointed Monsignor Peter Comensoli, 54, to head the archdiocese that covers Australia's second-largest city.Wilson stepped down as Adelaide archbishop after he was convicted in May. Adelaide is the capital of the South Australia state, which will bring in laws in October obliging priests to report evidence of abuse heard during a confession. The Australian Capital Territory and Tasmania state are planning similar laws.But acting Adelaide archbishop Greg O'Kelly said priests would not obey the law."Politicians can change the law, but we can't change the nature of the confessional, which is a sacred encounter between a penitent and someone seeking forgiveness and a priest representing Christ," O'Kelly told Australian Broadcasting Corp. last month."We have an understanding of the seal of confession that is in the area of the sacred," he added.Pell, who served at the Vatican as one of the pope's top aides, has become the highest ranking Catholic in the world to be charged in the church's global abuse scandal.The 77-year-old faces trial in his home state of Victoria on decades-old child sex abuse allegations. Pell has denied wrongdoing. Details of the allegations haven't been made public.Francis has insisted top clerics be held responsible for failing to crack down on paedophile clergy.