PEN §137: (a) Every person who gives or offers, or promises to give, to any witness, person about to be called as a witness, or person about to give material information pertaining to a crime to a law enforceme

(a) Every person who gives or offers, or promises to give, to any witness, person about to be called as a witness, or person about to give material information pertaining to a crime to a law enforcement official, any bribe, upon any understanding or agreement that the testimony of such witness or information given by such person shall be thereby influenced is guilty of a felony. (b) Every person who attempts by force or threat of force or by the use of fraud to induce any person to give false testimony or withhold true testimony or to give false material information pertaining to a crime to, or withhold true material information pertaining to a crime from, a law enforcement official is guilty of a felony, punishable by imprisonment pursuant to subdivision (h) of Section 1170 for two, three, or four years. As used in this subdivision, “threat of force” means a credible threat of unlawful injury to any person or damage to the property of another which is communicated to a person for the purpose of inducing him to give false testimony or withhold true testimony or to give false material information pertaining to a crime to, or to withhold true material information pertaining to a crime from, a law enforcement official. (c) Every person who knowingly induces another person to give false testimony or withhold true testimony not privileged by law or to give false material information pertaining to a crime to, or to withhold true material information pertaining to a crime from, a law enforcement official is guilty of a misdemeanor. (d) At the arraignment, on a showing of cause to believe this section may be violated, the court, on motion of a party, shall admonish the person who there is cause to believe may violate this section and shall announce the penalties and other provisions of this section. (e) As used in this section “law enforcement official” includes any district attorney, deputy district attorney, city attorney, deputy city attorney, the Attorney General or any deputy attorney general, or any peace officer included in Chapter 4.5 (commencing with Section 830) of Title 3 of Part 2. (f) The provisions of subdivision (c) shall not apply to an attorney advising a client or to a person advising a member of his or her family.