If you want to find out if the police are investigating you, one thing to keep in mind is that they wouldn't do it in secret. In fact, they'll even use their power to force you to tell the truth. Here are some ways to find out if the police are investigating you. Police at Your Doorstep Most of the time, police will come knocking on your door if you're under investigation. They are usually straight to the point and will identify themselves. These men will ask you if you could talk to them. If that happens, then you're probably under investigation. Search Warrant A search warrant is a legal document that authorizes an officer to enter and search premises. This is actually a very common way for the police to investigate people. If a police officer shows up at your door