After the policemen takes your information and any information from the scene, he will turn it in to his department at the end of the shift. The information will be entered into the department's system and you will be assigned a case number that you can use to follow up with the police department.
Generally police reports are reviewed and a determination is made as to whether they will be investigated. If there is a viable clue or suspect, the case will be assigned to officers who will investigate and try to apprehend a suspect. At this stage the police may contact you with follow-up questions or to identify a suspect or items recovered.
If the case can be worked and someone is apprehended, the case will be turned over to the prosecutor's office. If there are no clues, or no suspects, the case will eventually be closed. At this point, you may need to get a copy for your insurance company, if the crime resulted in making a claim for compensation through an insurance policy.