Hanoi police have arrested a woman who was filmed repeatedly slapping a police officer on the face last month, Nguoi Lao Dong newspaper reported.
Nguyen Thi Luyen, 34, was charged with "resisting officers on duty" and will be detained while investigations are underway.
At around 9 p.m. on October 8, Pham Van Hai, Luyen's 13-year-old nephew, and his friend drove a motorbike and were stopped by two police officers of the Hanoi City Police Department's Emergency Police Regiment on a street because they did not wear helmets.
The policemen seized the motorbike after the boys failed to produce papers.
After Hai called Luyen, she came to the scene to beg the officers not to confiscate the bike.
As an officer took the bike key from Hai, Luyen screamed out loud: "Police are beating people!" and insulted the officers.
She repeatedly slapped the officer on the face. Another officer pushed her away with a baton.
A passer-by captured the scenes on his mobile phone and later posted the two-minute video clip on the Internet.
The names of the two officers were not revealed.
In August 2011, a Ho Chi Minh City court sentenced Pham Thi My Linh, an 18-year-old girl, to nine months in jail for slapping a traffic policeman on the street in July.
Linh was arrested after a video clip, which featured her resisting police officers from seizing her mother's motorbike for driving the wrong way on a one-way street, was posted on YouTube.