How did you go with your reply? I have also been wondering if infringements need to be declared, there is something scary about ticking yes to the convictions question which im sure everyone would understand. Many say that in paying an infringement you are accepting guilt and are therefor convicted, but if you look up the meaning of convicted online it says to be found guilty by a jury in a court of law. I am in the same position for my partners next visa, she just received some fines in the mail for her car caught on camera doing some minor things like failing to stay in its own lane, I emailed the minister of immigration after receiving different advice from the immigration help line, police, immigration advisers, and immigration lawyers, so emailing the minister of immigration was my last resort, i received a reply from someone in his office o behalf of him and they said infringements do not need to be declared.