my point is, the reasons given by your road transport department for banning tints on vehicles were as stated. Whether or not the real reason why the traffic officers penalised you were of the true explanation or just an excuse for taking bribery, all lays down to the owner of the vehicle himself.
Like I said, if you think are you under the legal radar, challenge them. If you are afraid of police operations of fear that they might penalised you for the modifications done on your car, then it is obvious you have done something wrong and you know it.
As if I haven't been through any of those situation? I never bribed, cause I know what I did is not illegal, I would challenge them to follow by the system, not by their 'feelings' on what is illegal, and they never did, get me at all.
If you think your tint is legal, and the officers said no, ask him to bring the proper measuring meter to prove himself, otherwise, grab his foot, twist it up and stuck it up into his mouth and challenge him. I would do the latter one.
All Japanese vehicles distributed by the local dealers will have the OEM privacy screen removed prior to scrutiny to meet the requirements of the local transport deaprtment. Only vehicles imported personally by dealers (not distributed) will still have the OEM privacy screen still attached, because they are privately imported and hence do not need to pass the exact criteria for requirements on vehicles runing on Malaysian road, which is why you have to do it yourself, or, they will penalise you.
In Australia, if you have a OEM Privacy Glass, it is legal, because there is not such law yet to impose ban on OEM Privacy Glass, as long as the parts on the vehicles are OEM, they will pass the compliance at RTD, so OEM Privacy Glass is considered as OEM parts, who it will be approved.