term:

Hit-And-Run

hit-and-run adj

1

: having left the scene of a motor vehicle accident without stopping to fulfill the duties imposed by law (as rendering aid or giving identification) [a driver]
2 : involving or concerning a hit-and-run driver [a accident] [ statutes]

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.