Health: medical examiners; requirements for an investigation of the cause and manner of death; modify. Amends secs. 2 & 3 of 1953 PA 181 (MCL 52.202 & 52.203). TIE BAR WITH: HB 4077'25

Michigan House Bill 4078, enacted as Public Act 4 of 2026, updates the responsibilities of county medical examiners in investigating deaths. The bill mandates that medical examiners investigate deaths resulting from violence, negligence, or other criminal acts, as well as deaths that may affect public health. It also introduces confidentiality measures for medical records and reviews related to these investigations. Additionally, HB 4078 is linked to HB 4077, which modifies the process for medical certification of death records.

Supporters of HB 4078 argue that the bill enhances the thoroughness and confidentiality of death investigations, ensuring that causes of death are accurately determined and that sensitive information is protected. The tie-in with HB 4077 is seen as a step toward streamlining the death certification process, potentially leading to more efficient and reliable public health data.

Critics of HB 4078 express concerns that the increased responsibilities placed on medical examiners could strain resources and lead to delays in death investigations. There is also apprehension that the confidentiality provisions might limit transparency, making it more difficult for families and the public to access information about death investigations.