The campaign, launched on May 1, forms part of broader efforts by city police to strengthen public security and support a long-term goal of building a drug-free city by 2030.
According to the city's Traffic Police Division (PC08), road safety conditions remained largely stable between May 1 and May 28, with traffic accidents falling by 35 cases compared with the same period last year.
During the period, officers handled more than 76,000 traffic violations, suspended over 4,200 driving licences and imposed penalty-point deductions on more than 8,100 drivers.
Drink-driving offences accounted for nearly 21,900 violations, while 107 motorists tested positive for drugs and more than 100 cases involved vehicle overloading.
On waterways, traffic police handled more than 1,300 violations.
Patrols and inspections also uncovered 22 cases linked to criminal and public-order offences, including theft, gambling, obstruction of law enforcement officers, illegal drug possession, wildlife transportation and other violations.
Police said enforcement efforts would continue throughout the campaign, with greater use of surveillance cameras and closer coordination with local authorities to combat drug-related crime and improve traffic safety.