Just share my experiences.......
Date of letter 02/03/2001 from Traffic Police
Our records show that you have accumulated 17
demerit points for the following offence(s)
29/4/99- Park within a demerit points no parking zone (2+am) -3
pts
18/5/99- Driving in bus lane during prohibited hrs -4 pts
4/12/99- Causing veh to remain in bus lane during prohibited hrs
-4 pts
5/11/00- Careless driving (kanna charged in court) -6 pts
As your driving licence has not previously been
liable for suspension, i would like to remind you that if you
accumulate 24 or more demerit points within a
continuous period of 24 months, your driving
licence will be liable for suspension for all classes of
vehicles.
If you maintain a 12 month period free of offences incurring
demerit points, your previous points incurred will be expunged from
your driving record. If you maintain 24 month period free of
offences incurring demerit points, your previous points and
suspension will be cancelled.
Now back to 24pts liao..... 
So must remember..... if u kanna demerit points, make sure u dont
commit another one within 12 months.... if not, ur first offence
points will only be expunged 1 yr later from the date of 2nd
offence provided you maintain a 12 month period free of
offences.
