The Auditor General of Canada is like a super important grown-up who checks to see if the government is doing a good job with the money that they use. It's like when your teacher checks your homework to make sure you did it right!
The Auditor General looks at how the government spends money and makes sure it's being spent in the right way. They also look at if the government is following the rules and laws they should be following. They do this by looking at a lot of papers, like financial reports and budgets, and talking to a lot of people who work for the government.
If the Auditor General finds that the government is doing something wrong, they will write a report saying what they found and tell the government what they need to do to fix it. This helps make sure that the government is spending money the way they should and helps to keep people safe and happy.