Whenever any statement, relevant under section 32 or 33, is proved, all matters may be proved either in order to contradict or to corroborate it, or in order to impeach or confirm the credit of the person by whom it was made, which might have been proved if that person had been called as a witness and had denied upon cross-examination the truth of the matter suggested.
Section 151 Indecent and scandalous questions
Section 152 Questions intended to insult or annoy
Section 153 Exclusion of evidence to contradict answers to questions testing veracity
Section 154 Question by party to his own witness
Section 155 Impeaching credit of witness
Section 156 Questions tending to corroborate evidence of relevant fact, admissible
Section 160 Testimony to facts stated in document mentioned in section159