Handbook not important one .....
Most important they have to legalise car camera to take inside cabin .
Once it's being legalised , those bastards will think 3 times to want to chute stunts on taxi drivers or not ?
Now ?
Lan chiao LTA after so long , still never legalised it .
Anyway , my single lens camera now can take front and back manually .
Cos my lens can turn 180 degree in and out .
No need dual lens .
Tried a dual lens , no really satisfied .