Typically speaking, using regular notebook paper and a single envelope, 4 to 5 sheets of paper can be mailed while staying under 1 ounce. The United States Postal Service charges one stamp per ounce...
Exculpatory Evidence: Typically used in criminal cases, this type of evidence is that which favors the defendant, either partially or totally removing their guilt in the case. In the United States, if the prosecutor or police have found evidence, it is their duty to disclose it to the defendant.
Statutes may specify that certain evidence is prima facie evidence of a certain fact. For example, a duly authenticated copy of a defendant's criminal record may be considered prima facie evidence of the defendant's prior convictions and may be used against the defendant in court (Colo. Rev. Stat. Ann.