What Are The Requirements For Evidence To Be Introduced At Trial?

What Are The Requirements For Evidence To Be Introduced At Trial? To be admissible in court, the evidence must be relevant (i.e., material and having probative value) and not outweighed by countervailing considerations (e.g., the evidence is unfairly prejudicial, confusing, a waste of time, privileged, or based on hearsay). Can new evidence be presented after