Modifies provisions relating to the offense of keeping a dangerous dog

HB 1929 modifies Missouri's law on dangerous dogs by defining the offense as owning a dog that has previously bitten without provocation and then bites again, or a dog that causes serious injury or death on its first bite. Penalties range from a class B misdemeanor for minor bites to a class D felony if the dog causes death, based on injury severity. The bill requires seized dogs to be held for 10 business days before destruction, but allows owners to appeal in court within 30 days to challenge the destruction. However, if a dog attacks someone engaged in criminal activity (excluding minor trespass), the owner is not liable and the dog is not destroyed.