Newly Released Tapes Reveal Police Accusing Caylee's Mom of Lying Early in Investigation

NEWYou can now listen to Fox News articles!

Police released audiotapes Friday of their first interviews with the mother of missing Orlando toddler Caylee Anthony in which they said, almost from the start, they didn't believe anything she was telling them and were sure she knew where her daughter is.

The recordings, made public by the Orange County Sheriff's Office, reveal investigators' frustration with Casey Anthony's answers to their questions and their belief that she is lying.

"Right now, looking at you, I know that everything that you’ve told me is a lie, including the fact that your child was last seen a month ago and that you don’t know where she is," one detective tells Anthony, 22, on the July 16 interview tapes posted at "I’m very confident that you know where she is."

Anthony replies, "I don't," and the investigator shoots back, "You do, and we need to get past that." He then suggests that Caylee might not be alive.

"I understand that right now, Caylee may not be in very good shape," he says. "She may not be the way your family last remembers her. We need to find out where Caylee is. … This has gone so far downhill and this has become such a mess that we need to end it."

Anthony insists to police that her story about leaving her little girl, who was 2 when she was last seen in mid-June, with a baby sitter is true, despite the officers' insistence that it isn't.

"I have no clue where she is," Anthony responds. "If I had any sense of where she was at all, none of this would have happened."

Click here for links to all the interrogation tapes at

Also Friday, news emerged that the FBI and police offered the Anthony family the chance to take a lie detector test, but they refused.

On Thursday, fraud charges were filed in court against Casey Anthony in a case officials say is unrelated to the girl's disappearance.

The charges stem from allegations that Anthony used checks belonging to friend Amy Huizenga to buy groceries and other items.

Anthony has been charged with child neglect and making false statements to investigators in Caylee's disappearance. Investigators have called her a suspect in the case.

Click here for photos.

Click here for a timeline of the case.

The family reported Caylee missing in mid-July. The girl hadn't been seen for a month before Anthony told authorities.

Police now say they believe Caylee, whose third birthday was Aug. 9, is dead based on forensic evidence of a decomposing body and DNA matching that of the toddler found in Anthony's car.