What role is responsible for investigating crimes and gathering evidence?

The role responsible for investigating crimes and gathering evidence is a police detective. Detectives play a crucial part in the criminal justice system by conducting investigations into various criminal activities. They analyze evidence, conduct interviews with witnesses and suspects, and work closely with other law enforcement personnel to build cases against individuals accused of crimes. Their training and experience enable them to assess crime scenes, follow leads, and gather the necessary evidence to support prosecutions.

In contrast, while a forensic science technician does gather and analyze scientific evidence, their primary focus is on the technical aspects of evidence analysis rather than the broader investigative role. A security guard is tasked with maintaining safety and security in specific facilities but does not have the legal authority to investigate crimes. A prison administrator oversees the operations of a correctional facility and does not engage in crime scene investigations or evidence gathering. Therefore, the responsibilities of a police detective align perfectly with the requirement of investigating crimes and gathering evidence.