There is a clear expectation of privacy in a toilet stall, so random intrusions are not allowed. If an officer had probable cause to believe a crime was taking place within the stall, they could look through a crack in the door jamb or over the partition to investigate further.
Yes, if they have "probable cause" or if there are what is called "exigent circumstances". The police do not need a warrant if they observe a crime being committed or if they see contraband such as fireworks in plain view.
not if you are a guy
If you haven't committed any illegal acts there is nothing to charge you with.
(In the US) Yes, they do.
It keeps urine from being released until you use the restroom.
One can buy restroom signs in many places. A few of them being, Amazon, Ebay, Complaincesigns, justbathroomsigns, Lowes, Staples, nextag, and stopsignsandmore.
If you can be identified as being on the scene, accompanying the gunman, and fled along with him you will be charged as an accomplice in the armed robbery - UNLESS - if you are truly innocent and din't know the offense was going to be committed, contact the police, tell them this, and offer to turn yourself in and assist in identifying the perp.
It is fine if the employer allows it.
Police can trespass on private property if they have a search warrant, if they have probable cause to believe a crime is being committed, or if there is an emergency situation that requires immediate action.
Yes. Being on private property does not insulate you from law enforcement. If police observe something that warrants a traffic stop, they can make it regardless of whether you are in your driveway, a private parking lot, or a public street. There are some limits to what police can observe on private property, but these generally don't come up in a traffic situation, because it is normally a case where they can see from the public road or the offense occurred on the public road.
Maybe. It depends on the "crime" and who was doing it. If it was a fellow worker you should have gone through the chain of command instead of calling the police. Calling the police was not the proper action. If you were being robbed, then calling the police would have been the proper action. Since you were fired my guess is that it was something between you and a person you work with.
They do raids to gather evidence. They need good Intel or Probable Cuase the a crime has been or is being committed.