from citizens information:
Careless driving: This is defined as 'driving a vehicle in a public place without due care and attention'. The Gardai enforce careless driving offences and this involves a mandatory court appearance. From 4th June 2004, a driver charged and subsequently found guilty of careless driving will receive 5 penalty points on their licence. Drivers may also be fined up to a maximum of 1,500 euro, or given a prison sentence to a maximum of 3 months. (You should note the courts also have discretion to impose both the 1,500 euro fine and the 3 month prison sentence together).
hope this helps