542.406. 1. Any investigative officer or law enforcement officerwho, by any means authorized by sections 542.400 to 542.422, has lawfullyobtained knowledge of the contents of any wire communication, or evidencederived therefrom, may disclose such contents to another investigativeofficer or law enforcement officer to the extent that such disclosure isnecessary to the proper performance of the official duties of the officermaking or receiving the disclosure for investigative purposes only.
2. Any investigative officer or law enforcement officer who, by anymeans authorized by sections 542.400 to 542.422, has lawfully obtainedknowledge of the contents of any wire or oral communication, or evidencederived therefrom, may use such contents to the extent such use isnecessary to the proper performance of his official duties.
3. Any person who has received, by any means authorized by sections542.400 to 542.422, any information concerning a wire communication, orevidence derived therefrom, intercepted in accordance with the provisionsof sections 542.400 to 542.422 shall disclose the contents of thatcommunication or such derivative evidence while giving testimony under oathor affirmation in any criminal proceeding, including deposition in anycourt or in any grand jury proceeding, subject to the rules of evidence.
4. No otherwise privileged wire communication intercepted inaccordance with, or in violation of, the provisions of sections 542.400 to542.422 shall lose its privileged character and shall be suppressed uponmotion.
(L. 1989 H.B. 277, et al. ยง 4, A.L. 2002 S.B. 712)