Police in Hanoi are building a case against a dog thief who slashed a man attempting to make a citizen's arrest.
A Soc Son District police officer said they will file a request to the district prosecutors asking them to charge Dang Quang Linh, 25, for theft and battery.
The police said Linh and another man drove a motorbike to a village in the district on Tuesday afternoon to steal dogs.
A group of locals tried to catch them, but they fought them off with a knife, according to police.
One man was severely injured.
The mob managed to catch Linh and beat him bloody.
Police are still searching for his accomplice Kieu Van Tuan, 26.
Both traveled to Hanoi from the neighboring Bac Ninh Province.
The police seized their motorbike, a knife, a stun gun used to knock out dogs, and two stolen dogs.
Dog theft in Vietnam has been fueled by those who view the animals as a delicacy.
Restaurants pay between VND100,000 and VND200,000 (US$4.8-$9.6) per dog.
Dog thieves only face criminal charge since the stolen dogs are valued at VND2 million (around $100) or above – the threshold for criminal charges in Vietnam.
The idea that thieves only suffer an administrative fine inspires communities to take matters into their own hands.
Angry mobs have brutally assaulted dog thieves throughout Vietnam in acts of vigilante justice.
But the armed thieves have also fought back.