CHAPTER III — CRIMINAL OFFENCES
PART 11 — OFFENCES AGAINST THE ADMINISTRATION OF LAWFUL AUTHORITY
Division 1 — Corruption and the Abuse of Office
Sub-Division g — Other Offences Relating to the Aministration of Justice
Conspiracy to defeat justice and interference with witnesses
190. A person commits a summary offence if he or she —
(a) conspires with any other person to knowingly and maliciously accuse any person falsely of any crime ; or
(b) conspires to do anything to obstruct, prevent, pervert or defeat the course of justice ; or
(c) in order to obstruct the due course of justice, dissuades, hinders or prevents any person lawfully bound to appear and give evidence as a witness from appearing and giving evidence, or endeavours to do so ; or
(d) obstructs or in any way interferes with or knowingly prevents the execution of any legal process (civil or criminal) ;
(e) in any way obstructs, prevents, perverts or defeats, or attempts to obstruct, prevent, pervert or defeat, the course of justice.
Offences against administration of justice
Giving false testimony
Presenting false or forged evidence
Corruptly influencing a witness, obstructing or interfering with the attendance or testimony of a witness, retaliating against a witness for giving testimony or destroying, tampering with or interfering with the collection of evidence
EDIT.