removed
Sneaking into the PD is allowed without advert as long you do not attack police or raid to PD Bank. You are not allowed to defend yourself. Ex: Hobo is allowed to sneak in to jailbreak his friend. Once he's spotted, he can run but not attack the officer, even if attacked.
added
Do not raid a base that Cleary shows you don't gain anything. (examples empty bases, bases that are completely open showing no signs of ents) You will not be warned if you raid a base and you find out they have no ents.
Updated rule
The following 2 actions are allowed without adverting PD raid: Jail-breaking and Hackers hacking any of the PD panels, including the one in the Mayor's office. Anything involving breaking through a prop or a fading door is not allowed under this rule and will be considering PD raiding without an advert. If you wish to PD raid, you will still be required to call PD raid after exiting the PD entirely. You may not fight CP in self defence/party assists inside of PD unless you are raiding.
Ex: Hobo is allowed to sneak in to jailbreak his friend. Once he's spotted, he can run but not attack the officer, even if attacked.