The municipality about an hour outside of Montreal is seeking the right to issue fines ranging from $100 to $1,000 to people caught insulting police officers or municipal employees on the internet.
According to Catherine Bouchard, the director of legal services for Granby, the bylaw already existed for face-to-face insults and has been used in recent years for online slurs.
"We've given statements of infractions to people who have insulted police officers on the net or through social media," Bouchard said.
"We already apply it that way, our bylaw. We just modified it to make sure that there was no ambiguity."
The bylaw modifications, which Bouchard said will be tabled on May 4, prohibit defamatory statements or slurs against city employees online.
"Are we insulting a police officer in the discharge of his duties? That's the offence that we are rewriting, if I may, in a very clear manner that regards social media and internet," Bouchard said.
She said she wasn't aware of any constitutional challenges to the previous bylaw, which has existed for more than a decade. She said other Quebec municipalities have similar bylaws.
"If you put something out on the internet, I don't know what the expectation of privacy is," Bouchard said.
"Let's say I write something about you that's derogatory or that's insulting… do I have the freedom to write anything about you?
"Your freedom of speech does not give you the right to say anything about anybody you want in an insulting manner. I can't destroy your reputation and who you are because I have freedom of speech."
The bylaw will be presented at a public city council meeting on May 4.