Thank you for the opportunity to help you with your question!
If a co-worker is breaking a working policy i will not report him or her because it might lead to his or her being fired which may in turn render him or her jobless. i will instead understand the reasons for his or her mistakes and advice her accordingly. I will also try educate him or her on the importance of observing the policies of the workplace.
Please let me know if you need any clarification. I'm always happy to answer your questions.