Tech stealing time

How would your store handle this situation. Technician clocks out for only 30 minutes but really takes an hour lunch. She also takes her two 15 minutes breaks a day as well. She is a tech in training and literally has had warning after warning about dress code, air pod , customer service , being on her phone at register, etc!!! My Rxm is a pushover and weak when it comes to certain techs. He has no problem telling me his me , the RxopsTL to grab the register but he is scared to tell two technicians in training to run the register. He doesn’t even want to address this situation he wants me to address it. I feel like it will only bring drama to our pharmacy and me being a younger manager , I feel as though the techs don’t take me serious. What kind of action would you take as the RxOpsTL. If I’m not mistaken stealing time is a fireable offense but I don’t want to fire someone in this economy but what she is doing can’t be tolerated any longer.