Section 373 — Letting a dangerous animal roam
English translation
Whoever, having charge of a fierce or dangerous animal, neglectfully allows that animal to roam at large in a manner liable to cause harm to a person or property, shall be punished with imprisonment not exceeding one month or a fine not exceeding ten thousand baht, or both.
This English translation is provided for reference only and has not yet been firm-verified — always rely on the Thai original.
Firm annotation
The elements are (1) a person having charge of a fierce or dangerous animal, (2) neglectfully allowing it to roam at large, and (3) in a manner liable to cause harm to a person or property. Liability rests on the neglect of the person in control rather than on any injury actually occurring, so the risk of harm is enough. It is one of a small group of petty offences addressing dangerous animals, complementing Section 374 which deals with inciting an animal to attack, and it targets a failure of safe custody rather than an intentional use of the animal.
Why this matters in practice
Exposure is minor, up to one month's imprisonment or a 10,000 baht fine, but where the animal actually injures a person or damages property the keeper may also face civil liability for damages and potentially more serious charges. The key issue is neglect: keeping the animal securely confined or under proper control answers the charge, so evidence of enclosures, restraints or supervision matters. Note the offence applies to whoever has charge of the animal, which may include a handler or keeper as well as the owner.
Frequently asked questions
When is an owner liable under Section 373?
When a person in charge of a fierce or dangerous animal neglectfully lets it roam alone in a way that could harm a person or property; actual injury is not required.
What is the penalty for letting a dangerous dog roam?
Under Section 373 it is imprisonment of up to one month, a fine of up to 10,000 baht, or both.