Government Code §551.143

(a) A member of a governmental body commits an offense if the member: (1) knowingly engages in at least one communication among a series of communications that each occur outside of a meeting authorized by this chapter and that concern an issue within the jurisdiction of the governmental body in which the members engaging in the individual communications constitute fewer than a quorum of members but the members engaging in the series of communications constitute a quorum of members; and (2) knew at the time the member engaged in the communication that the series of communications: (A) involved or would involve a quorum; and (B) would constitute a deliberation once a quorum of members engaged in the series of communications. (b) An offense under Subsection (a) is a misdemeanor punishable by: (1) a fine of not less than $100 or more than $500; (2) confinement in the county jail for not less than one month or more than six months; or (3) both the fine and confinement.