Which position typically has full police powers for investigating suspected arsonists?

The position that typically has full police powers for investigating suspected arsonists is the fire investigator. Fire investigators are specially trained professionals who not only understand the science and techniques of fire investigation but also hold extensive knowledge of related laws and regulations. They often work closely with law enforcement agencies to gather evidence, interview witnesses, and ascertain the cause and origin of fires, particularly where arson is suspected.

In many jurisdictions, fire investigators are granted authority akin to that of law enforcement officers, enabling them to conduct thorough investigations of suspicious fires. This includes the power to issue search warrants and gather evidence legally, which is crucial for building a case against suspected arsonists.

The other options, while important in their roles, do not typically possess the same level of investigative authority. Fire inspectors focus on safety compliance and code enforcement rather than criminal investigations, and fire marshals oversee fire prevention programs and fire department operations, and may have some investigative responsibilities, but their primary role does not center on criminal investigations like that of a fire investigator. A public information officer primarily handles communication and media relations regarding incidents and does not engage directly in investigations.