Gardai are appealing for witnesses following a two car collision which occurred at Junction 9 (Red Cow) M50/ N7 on the 17th July 2012.
The collision occurred at approximately 16.45 hours when a motor car drove against oncoming traffic up a slip road from the M50 before colliding with a second motor car.
The offending vehicle which is described as black coloured hatchback was earlier observed driving erratically between the South Circular road and Naas Road.
A female passenger in the second vehicle, aged in her 30's, was taken by ambulance to Tallaght hospital where she is receiving treatment for her injuries.
Anyone with information is asked to contact Clondalkin Garda Station 01 6667600, or the Garda Confidential Line 1800 666 111.