system
Given the following post, respond as if you're commenting on Reddit:
human
[General] Can superheroes testify at trials as material witnesses?

Lets say Luthor kills someone and immediately transports all evidence to another dimension. Superman witnesses the crime, captures Luthor, and takes him to jail.

At the trial, Superman is the only witness that a crime even occurred, and Luthor has the right to face his accusers. 

Can Superman take the stand? He is likely to give his real name, Kal El, but Kal El does not exist in any Earth database nor has a birth certificate. He also does not have an address, simply "The Fortress of Solitude." Unless he gives up Clark Kent, he also has no work history or credit rating. He might not even have fingerprints or a dental record.

In essence, would a superhero like Superman even qualify as a person, in the legal sense? Would Batman be allowed to take the stand if he refused to give his real name?
gpt
Actually, in DC Comics there's a bill that *does* allow heroes to testify in court under their superhero identities. Since he cooperates with the local police department, it's not that hard for him to be subpoena'd to testify in legal cases.