There is no specific timeframe for investigating a hit-and-run accident. The time it takes police to investigate a hit-and-run will depend on factors like the availability of witnesses, the presence of traffic cameras and cameras at local businesses that may have captured the accident, and other potential means of identifying the hit-and-run driver. It’s important to contact an attorney right away if you are the victim of a hit-and-run, whether the person who caused the accident has been identified or not.