2.03 Evidence Admitted Only Against One Party is defined as evidence that can only be used against one party in a court case or dispute. This type of evidence can be used to strengthen one side of an argument, while having no effect on the other side. Types of 2.03 Evidence Admitted Only Against One Party include testimonial evidence, documentary evidence, and physical evidence. Testimonial evidence is evidence that comes from a witness or other person who has firsthand knowledge of the events in question. Documentary evidence is evidence that is in written form, such as contracts, emails, and records. Physical evidence is tangible evidence, such as objects, weapons, or clothing. These types of evidence are typically used to prove or disprove a fact in a dispute or trial.