What is a police report look like?

There is no "standardized" form for police reports and they can vary greatly according to the requirements of the reporting agency and the laws of the jurisdictions concerned. For example, in a basic Criminal Offense Report usually all that is required is that the following 5 questions be answered, if possible, (Who -What - When - Where - How) and a short narrative report describing the incident or offense. There are MANY MANY types of police reports and just as many forms on which to report the information (traffic accidents - criminal investigations - warrant applications - etc - etc. so it is impossible to definitively answer the question.