A bylaw enforcement officer is a person who works for the government to make sure people are following the rules or laws that have been made by their community. Just like how your teacher makes sure you follow the rules in your class, a bylaw officer makes sure that everyone is following the rules in their community.
The rules they enforce can be things like keeping the noise down so people can sleep at night, not putting trash where it shouldn't be, or making sure pets are kept on leashes. They are like rule police officers, but they only enforce rules within their community.
When a bylaw enforcement officer sees someone breaking a rule, they might talk to them first and give them a warning. If the person keeps doing it, they might get a ticket or have to go to court. This is because bylaw officers want to help keep everyone in the community safe, happy, and healthy.