In my internship class my cooperating teacher does not have many rules. The students are very disrespectful, always talking back. She threatens the students she will call home but most of the time she dosent follow through. How can you politely suggest harsher punishment for students who constantly talk back?
The CT might listen if you had a chat with her.
It could also be useful in determining why she doesn't follow through. Talking with the CT in a non-confrontational manner would be the best solution without running the risk of coming off as dismissive or rude.
I would talk to her about it. Try to understand why she doesn't follow up and have many rules and then add your what you think and why.