TIP #1: Get the medical attention you need as soon as possible. Call 9-1-1. Let trained medical professionals evaluate your injuries and take you to the hospital if needed.
TIP #2: When you speak to the police about the accident, tell the truth but only the truth. Many accident victims speculate about the extent of their injuries or the cause of the accident at a time when they are upset and may lack information. Anything you say to the police, even if it is only conjecture on your part, may show up in a police report. Limit your statement to the facts you know. Ask the attending police officer for his or her badge number.
TIP #3: If your injuries permit, get as much information as you can about any other vehicles involved in the accident. Get the driver's name; the car owner's name; the make, model, year, colour and condition of the vehicle; the vehicle's license plate number; the driver's and owner's addresses; and the name of the owner and operator's insurers. Much of this information is usually on the police report. Obtain the police report and store it for safe keeping.
TIP #4: Make notes about the accident scene, either at the scene or as soon as you can after leaving. Write down (a) the approximate address or cross street; (b) the direction the cars were traveling; (c) the direction any vehicle was turning; (d) the position the vehicles were stopped following the collision; (e) the temperature and weather, including whether the roads were bare; (f) the time of day and the position of the sun; (g) the condition of the road (cracks, bumps or holes); (h) any traffic signals or signs including speed limit postings; (i) the identification of any witnesses including names, addresses and telephone numbers. A photo is worth a 1000 words. Remember, many of us now have telephone cameras and can capture the scene that way.
TIP #5: Find out where any of the vehicles in the accident were towed... in case you need to find out more about the damage to any of the vehicles involved.
Not everyone is going to be able to take steps 1 to 5 at the time of an accident. If you can manage, great! If not, your personal injury lawyer can help you collect the information you need.