exclusionary rule: a rule that provides that otherwise admissible evidence cannot be used in a criminal trial if it was the result of illegal police conduct
rule of evidence: (law) a rule of law whereby any alleged matter of fact that is submitted for investigation at a judicial trial is established or disproved
significant digit: any digit of a number that is known with certainty; any digit of a number beginning with the leftmost non-zero digit and ending with the rightmost non-zero digit (or a zero considered to be the exact value)