Real Story investigates what road safety groups describe as an epidemic of hit-and-run drivers.

While the number of road accidents are falling, the number of people injured or killed by drivers who fail to stop is increasing.

Real Story reveals that last year more than 14, 000 hit-and-run drivers who caused injury or death were never traced.

Fiona Bruce talks to families struggling to come to terms with how such drivers could leave their loved ones for dead after a crash.

She meets relatives of victims who feel the courts have placed a small price on the life of their nearest and dearest.

Who are the hit-and-run drivers who escape detection?

Inspector Ian Hales of Greater Manchester Police says: "With intelligence we've gathered we now have a profile of the kind of person and the kind of car likely to be involved in a hit-and-run.

"It's now time to get them off our roads."