Did Des Corcoran's daughter Mary-Lou Corcoran try to destroy Weatherill's Labor Government? LEAK: Mary-Lou Corcoran is believed to be the staffer suspended for providing secret state election strategy documents. THE woman, who Premier Jay Weatherill believes was responsible for leaked confidential government documents about his election strategy, can today be revealed as the daughter of former Labor premier Des Corcoran. Former Victor Harbor mayor Mary-Lou Corcoran is the staffer suspended and facing the sack after being accused of leaking secret strategy documents revealing Mr Weatherill's policy themes and campaign timetable for the next three months. Ms Corcoran is well-regarded by many people within the Labor Party as an enthusiastic grassroots contributor and a loyal party person who has the ALP "in her blood." READ BELOW: Remove this government - Abbott She ran as a Labor candidate for the seat of Finniss on the Fleurieu Peninsula in 2010 and 2006 State Elections. Her father served as a Labor MP for 20 years and was premier after Don Dunstan resigned in 1979, but lost that year's election to Liberal David Tonkin. Former Labor premier Des Corcoran. Her grandfather Jim Corcoran was a state Labor MP for 19 years. READ: Government's election plans revealed One party figure said she was devastated by the allegations against her and was believed to be "lying low" in Victor Harbour. She has been stood down indefinitely and has had her government telephone revoked and lost her access pass to the premier's office, where she has been working as an adviser. As such The Sunday Mail was unable to reach her for comment yesterday. Ms Corcoran worked formerly for Transport Services Minister Chloe Fox and has had a difficult personal time over the past two years. She injured her neck in a fall at Parliament and while she was on sick leave she allegedly had personal details in her telephone accessed by a Labor MP. She was also let down by the party after she was effectively promised pre-selection for the seat of Elder, and convinced to leave her Victor Harbour home and move to Edwardstown. However the party is set to confirm that this year's unsuccessful candidate for Boothby, Annabel Digance, will run instead. IN THE FAMILY: The Corcoran family with young Mary-Lou at left. The Premier yesterday refused to name Ms Corcoran when he was asked point-blank if she was the suspended staffer. He made no apologies for taking such tough action against her. Earlier in the week Premier Jay Weatherill said leak investigations were 'fruitless exercises" but the next day revealed "a ministerial adviser has been suspended pending the outcome of an investigation." But Mr Weatherill was on the defensive again, arguing that there was no double standard between the swift and harsh action taken again the suspected source of the leak and the "counselling" he provided his top adviser and friend who failed to inform him of an incident of child sex assault at a school. They are separate matters. One is intentional conduct, the other was a mistake that was made," Mr Weatherill said. The mistake needs to be put into context. It's still an important one (mistake), it did require counselling but it's a different type of matter to somebody who has seriously and wilfully does something that undermines their contract of employment with their employer. Of course you can't let people send confidential documents, cabinet documents to media outlets. It's just inconsistent with people's responsibilities as an employee. It's just something that can't be tolerated and so it has to be dealt with but in the scheme of things it is of very little consequence. Mr Weatherill said the government had good cause to take the steps it had in suspending the alleged leaker but the investigation needed to be concluded. These are matters that require investigation. I can't say anything that would jeopardise those investigations," he said. PRIME Minister Tony Abbott says he wants to see the back of the State Labor Government. In Adelaide, yesterday, for the state Liberal Annual General Meeting, Mr Abbott threw his support behind state Liberal leader Steven Marshall and his plan to upgrade the whole North-South Rd Corridor within a decade. PLAN: Prime Minister Tony Abbott, with Steve Marshall and Alexander Downer at the Regatta Bistro before the South Australian Liberal Party AGM. Picture: Mark Brake Source: News Limited "For too long South Australia has been let down by bad Labor governments in Adelaide and Canberra," Mr Abbott said. I want to see this state get a fair share of the investment, opportunity and jobs this will bring and it stands the best chance of that happening with Steven Marshall as Premier. Mr Abbott said State Labor Government had "monumentally failed" to deliver any serious infrastructure, dropping its longstanding commitment to upgrade Darlington for the Torrens to Torrens project. Steven Marshall came to me the other day and he said, 'Tony, let's do them both. Let's do them both. And while we are on about it, let's try to get the whole North-South Road Corridor upgraded within a decade.' That is exactly what will happen with Liberals working together at both the state and federal level to get things done.