Which of the following best describes a "crime scene tech"?

A "crime scene tech" is best described as a technician who collects and analyzes evidence. This role is crucial in the investigation process, as the collection of physical evidence directly from a crime scene is essential for building a case. Crime scene technicians are trained to properly gather various types of evidence, such as fingerprints, biological samples, and trace evidence, while preserving the integrity of the crime scene. Their work often involves using specialized tools and techniques to ensure that evidence is collected in a way that is admissible in court.

In addition to the collection, these technicians may also perform initial analyses on the evidence, helping to determine its relevance to the investigation. This aspect of their role sets them apart from investigators who focus more on interviewing witnesses and developing leads, or forensic scientists who conduct extensive laboratory testing but may not be directly involved in the field collection of evidence. Overall, the primary responsibility of a crime scene technician centers around evidence management, making option B the most accurate descriptor of their function.