Police began issuing fixed penalty tickets for traffic violations in digital format on Sunday, although for the time being all penalised drivers will still get a paper ticket.
In a statement, the force said people who had provided the Transport Department with their contact details would receive e-tickets via SMS messages or e-mails but those who hadn't would continue to get ticketed in paper form.
Police also said that, as the e-ticket system had just been introduced, officers would issue both electronic and paper tickets but drivers only need to pay one of them.
Officers also reminded people to be aware of scammers, noting that e-ticket e-mails do not contain hyperlinks.
"All SMS tickets are issued under the SMS sender name "#HKPF-eTT"," the force added.
"Therefore, if the purported SMS ticket was not sent under this sender name, it must be fake."
The force has also introduced a mobile app and a website for the e-tickets, and drivers are encouraged to pay their fines electronically.
Officers went on to say that they'll monitor the progress of the new system, and they'll listen to public feedback to assess the effectiveness of issuing both electronic and paper tickets and adding more functions to the electronic platform in future.