Rule 11-610 Religious beliefs or opinions.

A witness's religious beliefs cannot be used in court to make them look more or less trustworthy. Lawyers can't bring up someone's faith, or lack of it, to argue the jury should believe them more or believe them less.

This keeps religion out of the question of whether a witness is telling the truth. What matters is the witness's testimony and other proper ways of testing their credibility, not what they believe about religion. Courts want juries to judge a person's honesty based on relevant facts, not on their personal faith or beliefs.