@Namie243 Cool, I'll check it out later.
Since you mention accuracy on your Audi A4 mod page, I'll point out that the Wiki page says that police vehicles always have a license plate that starts with "AM".

Hi. I'm not great at Chinese, even though it's my heritage. However, Google Translate does have a pretty good handwriting mode, which is what I used. The writing system is called Chinese Traditional (as opposed to Chinese Simplified). You can't really say that Cantonese always uses one system while Mandarin always uses the other. However, Hong Kong is mainly Cantonese / Chinese Traditional.

Anyway, the writing is already translated in your pictures. English is one of the official languages of Hong Kong, so the writing on official vehicles is written in both.

消防 - Fire
救援 - Rescue
警察 - Police
救護 - Ambulance
救護車 - Ambulance

Googling "hk police car license number on roof" shows that HK police cars do also have their license numbers printed on the roof, similar to your SUV picture. The rest of the livery also looks similar.

This might be useful: https://en.wikipedia.org/wiki/Police_vehicles_in_Hong_Kong