We've tried': PM says security measures aren't working

핵심 요약

• Victoria's premier, Ben Carroll, says extra security will be in place for the November 28 state election after an alleged targeted attack on federal MP Helen Haines. Police allege Brendan Nugent, 43, drove a four-wheel-drive into Dr Haines outside her Wangaratta electorate office on Monday.
• She remains in critical condition after both legs were amputated. Nugent has been charged with dangerous driving causing serious harm and intentionally causing serious harm, and faced court for the first time on Wednesday.
• Police have not ruled out further charges, including attempted murder.