Here’s the Houston muni code for dog at large, your city/county is probably something similar.
Sec. 6-101. - Running at large prohibited.permanent link to this piece of content
(a)
It shall be unlawful for any person owning or having in his possession any dog to allow such dog to be at large without the owner or person in charge thereof having direct physical control over such dog. An owner or person having in his possession a dog may allow the dog to be at large on property that does not provide the animal with access to a sidewalk or street.
(b)
It is a defense to prosecution under subsection (a) of this section that the dog was in an off-leash site established under section 32-11 of this Code,
(c)
It shall be unlawful for any person owning or having in his possession a dangerous dog, as defined in section 6-151 of this Code, to allow that dog to be at large. A person who violates this subsection shall, upon conviction, be assessed a fine of not less than $500.00 nor more than $2,000.00. Each day that any violation of this subsection continues shall constitute and be punishable as a separate offense.
Very useful knowledge, many thanks! I will look for similar code in Fort Bend County.