Final answer:
The attorney's conduct raises ethical and legal concerns.
Step-by-step explanation:
The attorney's conduct in this situation raises ethical and legal concerns. While the attorney had a duty to maintain client confidentiality regarding the burglary charge, they also had a duty to prevent an innocent person from being wrongfully convicted. However, the attorney's approach of leaving an anonymous tip to the District Attorney's office might not have been the most appropriate course of action. Instead, the attorney should have considered reporting the new information through proper legal channels or seeking legal advice on the best course of action.