What type of evidence is considered inadmissible due to its origins?

Illegally obtained evidence is considered inadmissible due to its origins because it violates legal procedures or rights during its acquisition. The law upholds standards of fairness and justice, which means any evidence gathered through unlawful means, such as without a warrant, through coercion, or in violation of an individual’s constitutional rights, cannot be used in court. This principle is rooted in the idea that allowing such evidence would undermine the integrity of the judicial system, promote unlawful conduct, and violate individuals' rights.

Other forms of evidence, such as direct evidence, primary evidence, and expert opinion evidence, are not inherently inadmissible simply based on their nature. Direct evidence refers to information that directly proves a fact without the need for inference, primary evidence is the original documentation or objects presented in their unaltered state, and expert opinion evidence involves insights from specialists based on their expertise. However, all these types can be admissible if obtained through lawful means and relevant to the case in question.