Final answer:
Professionalism in death investigation includes maintaining a respectful and ethical approach except for getting a conviction in the courtroom, which is not the responsibility of death investigators.
Step-by-step explanation:
Professionalism in death investigation entails various aspects that ensure the process is conducted with respect and integrity, which is a critical part of the forensic or death investigation fields. These aspects include wearing clean and neat clothing, returning the decedent's valuables to the family, using appropriate language, and maintaining the dignity of the decedent. However, getting a conviction in the courtroom is not a direct responsibility of death investigators but rather a matter for the legal system where different professionals play their roles.