"Although the zoo was being looked at after being implicated in the sale of more than 100 tigers to China, there is little evidence of charges being laid," Roberts says.
Schmidt-Burbach says WAP is in close contact with the authorities in charge of the investigation, and that ideally they'd see "a permanent breeding ban of captive tigers in private facilities in order to phase out this cruel industry that only exists for commercial profit."
The Sriracha Tiger Zoo did not respond to The Dodo's request for comment.
You can learn more about tigers and other wild animals used in tourism in Thailand here. The best way to stop the use of animals in entertainment and tourism throughout the world is to not support it.
"If you can hug, ride or take a selfie with a wild animal, chances are cruelty is involved - so don't do it," Schmidt-Burbach says.
You can watch more of what goes on at the Sriracha Tiger Zoo below: