Is it possible for anyone to acquire a full police report, pictures, test results, details, statements, and all information that comes with a case?

You can make a Freedom of Information Act request for the reports, etc., but in most cases so much will be blacked out (redacted) that it would be of limited value to you. Once someone is charged, the defense attorney should be able to get the full reports. If your plan is to help the investigation, you might ask the lead detective to give you the information to let you help. However, this may lead them to focus on you as a possible suspect, so think about that carefully before doing it.