What is the effect of the Police Complaints Commission on officers' political activities?

"In brief, the [A]ct (1) secures to officers the right to engage in political activity, if they so desire, when off-duty and out of uniform, '[e]xcept as otherwise provided by law' ( 3302); (2) prescribes certain protections that must be afforded officers during interrogations which could lead to punitive action against them ( 3303); (3) gives officers the right to review and respond in writing to adverse comments entered in their personnel files ( 3305, 3306); (4) allows officers to refuse to submit to a lie-detector test ( 3307); (5) prohibits searches of officers' personal storage spaces or lockers except when they are present, or have been notified, or give their consent, or a valid warrant is obtained ( 3309); (6) limits the circumstances in which officers may be compelled to disclose their personal financial status ( 3308); (7) gives officers the right to an administrative appeal when any punitive action is taken against them, or they are denied promotion on [217 Cal.App.3d 512] grounds other than merit ( 3304); and (8) protects officers from retaliation for the exercise of their rights under the [A]ct (ibid.)." (Baggett v. Gates (1982) 32 Cal.3d 128, 135, 185 Cal.Rptr. 232, 649 P.2d 874, fn. omitted.)