Thailand produced cat dog pet food Wellness Tiki illegal meat trade from stolen dogs

Wellness brand signature selects, Tiki brand pet food - all premium costs - and probably others I am not aware of - being sourced from Thailand - beware when you buy this food because you are encouraging the illegal meat trade - stealing domestic animals and killing them for your pet food.

http://www.change.org/en-GB/petitions/stop-the-dog-meat-smuggling-trade

Are there other sources where this has been confirmed? It is an unfortunate practice for sure, but some meat in the meat trade being illegal dog meat (or any other unsanitary or diseased meat) doesn't mean all of it is. The petition doesn't address the specifics of where these meats end up.