When a scene involves possible death or a death investigation, the on-scene authority over disposition rests with the coroner’s/medical examiner’s office. They are responsible for determining death, conducting the investigation, and handling the body, so they can authorize EMS to leave the scene once their review is complete and the body has been secured or removed. This role is separate from rescue and safety functions carried out by the fire department or the on-scene medical decisions made by the EMS supervisor. In such cases, coroner’s office personnel have the authority to release EMS from the scene.

Decomposition is a clear sign that death has already occurred. When someone has begun to decompose, there is no realistic chance that resuscitative efforts will succeed, so continuing or starting resuscitation would be futile and may divert resources from someone who could benefit. In such cases, it is appropriate to withhold or discontinue resuscitative measures according to standard practice and guidelines. Therefore, this statement is true. The other options don’t fit because decomposition provides definitive information about death, so there’s no need for additional information to decide, and it isn’t “not applicable” or incorrect.

Rigor mortis and postmortem lividity are clear indicators that death has occurred. Rigor mortis causes the body’s muscles to stiffen a few hours after death, which makes resuscitation efforts ineffective, while lividity shows blood settling in dependent areas as circulation has ceased. When both signs are present, there is almost no chance that CPR will restore life, so personnel may withhold or discontinue resuscitative efforts in line with standard protocols. This is why the statement is true.

Confidentiality in investigations means sharing only what is necessary for the process and keeping a clear record of what is disclosed and to whom. The best approach is to limit disclosures to only what is necessary and maintain documentation, because this protects privacy, supports a fair and controlled process, and creates an auditable trail of the investigation. Only those who need to know should have access to details, and those records should be kept secure to prevent leaks and confusion. Sharing everything with the public would expose sensitive information and harm the investigation; discussing details with coworkers who aren’t involved breaches privacy; and recording nothing removes accountability and makes it hard to verify what happened or meet policies and laws.