thanks sschtan and all for your input.
by the way, for all those who needs fingerprinting done in Malaysia, please proceed immediately to Bukit Aman police station ( you may skip PJ and Shah Alam HQ ), they are the only ones that are able to do it.
for your convenience, here's simple guide. there are 2 entrances to Bukit Aman, make sure you use the front entrance ( via the lake gardens, kl bird park, etc. ) and just park your car opposite the police station. walk to the guard house and register yourselves ( you need to leave you mobile phone ). you will need to fill up a form, inform the officer that you want to get your fingerprinting done. you will be given a visitor's pass ( touchpass - which you need to use for entry later ). the location is at D2 4th floor ( the tallest white building at the end of the road ), about 5-10 mins walk. once you're at the white building, another security check, then walk to the elevator and up to 4th floor. once out, take the left door ( there are signs ) and ring the door bell, an officer will come to you and process your fingerprints. voila!
it took about 5 mins to get the fingerprinting done, and about 10-15 mins wait to get your fingerprint certificate. just the identification card required ( only applicable for Malaysians, foreigners may need passport or other form of identification ), while your photo will be taken on the spot. once done, they will provide you the fingerprinting certificate, and you will need to pay RM30 per copy.
should you need further help, just drop me a msg.