This step is always optional. Your report is taken seriously with or without evidence. Only add a file if you are certain it is safe to do so.
Photos, videos, and recordings may contain hidden location data (GPS coordinates, device model, timestamps) that could identify you. We automatically strip this metadata from images before storing. However, please only upload a file if the content itself does not show your face, your home, or anyone who could identify you. You do not need to upload anything for your report to be taken seriously.