Nothing in Section 631, 632.5, 632.6, or 632.7 shall be construed as prohibiting any peace officer or federal law enforcement officer from intercepting any wire or electronic communication pursuant to an order issued in accordance with the provisions of this chapter. Nothing in Section 631, 632.5, 632.6, or 632.7 shall be construed as rendering inadmissible in any criminal proceeding in any court or

before any grand jury any evidence obtained by means of an order issued in accordance with the provisions of this chapter. Nothing in Section 637 shall be construed as prohibiting the disclosure of the contents of any wire or electronic communication obtained by any means authorized by this chapter, if the disclosure is authorized by this chapter. Nothing in this chapter shall apply to any conduct authorized by Section 633.