If that's the case, we won't be deterred, as she has many charges against her. I will urge them to follow her trail and bring her to justice," he said.
Police were keeping an eye on her social media activity, and trying to block her Facebook account.
Writing on Facebook in response to Tack's taunt, Aum insisted she was still in Bangkok.
"I'm in a taxi and have just gone past Chitralada Palace," she said.
Aum predicted the palace would one day return to the people from whose taxes it is funded.