Introduction: Hospitals are responsible to respond to legitimate demands for health information release while protecting the confidentiality of patient health records. This study investigated and compared laws and policies of health information disclosure for legal authorities in Iran and some selected countries. Methods: This descriptive-comparative study included health information disclosure laws and policies in selected countries such as the United States, Australia, England, Malaysia and Iran. Data were gathered from systematic internet search, library resources and communication with health information professionals. Data analysis was done using comparative tables and qualitative method. Results: The results showed that in all the five studied countries, there are specific written policies and procedures for health information disclosure for legal authorities. It was found that, without a judicial warrant, a patient consent is needed for medical record disclosure for courts, representatives of judicial authorities and law enforcement agencies. Conclusion: In all of the selected countries there are ordained limitations for health information release to protect patient rights. Keywords: Disclosure; Legislation; Medical Records.