Authorities say that the image, which has since been taken down, must be verified as real before Lindsey can be arrested and charged, the Morning News reported.
"We can't arrest and charge someone like that based on a picture on the internet. We have to make sure that is true and correct," he told the paper. "Anybody can take a computer and alter a photograph."
Tiger went missing on Wednesday, according to KBTX news, and Lindsey allegedly posted the picture to Facebook on Wednesday night. On Friday she was fired from her job at the Washington Animal Clinic in Brenham, Texas, after it received more than 500 phone calls demanding her dismissal. In the comments section of her post, she wrote, "no I did not lose my job. Lol. Psshh. Like someone would get rid of me. I'm awesome!" KBTX reported.
The Austin County Sheriff's Office wrote on Facebook on Sunday that it had several deputies assigned to the case. The statement also explained that Lindsey invoked her right to an attorney and so the department has to wait until she comes in with her lawyer to answer questions.