California Penal Code
Each order authorizing the interception of any wire or electronic communication shall specify all of the following:
(a) The identity, if known, of the person whose communications are to be intercepted, or if the identity is not known, then that information relating to the person’s identity known to the applicant.
(b) The nature and location of the communication facilities as to which, or the place where, authority to intercept is granted.
(c) A particular description of the type of communication sought to be intercepted, and a statement of the illegal activities to which it relates.
(d) The identity of the agency authorized to intercept the communications and of the person making the application.
(e) The period of time during which the interception is authorized including a statement as to whether or not the interception shall automatically terminate when the described communication has been first obtained.