Mom of missing tot says she took lie detector test

By MARIA SUDEKUM FISHER | October 7, 2011 | 8:45 AM EDT

The parents of missing 10-month old Lisa Irwin, Jeremy Irwin and Deborah Bradley, speak during a news conference in Kansas City, Mo., Wednesday afternoon, Oct. 5, 2011. The parents made a tearful plea for the child's safe return Wednesday, nearly two days after she disappeared, begging her abductor to drop her off someplace safe. (AP Photo/The Kansas City Star, Mike Ransdell)

KANSAS CITY, Mo. (AP) — The mother of a 10-month-old girl who disappeared from their Kansas City home says police told her she failed a lie detector test.

Twenty-five-year-old Deborah Bradley told The Associated Press Friday that she took the polygraph earlier this week after her baby, Lisa Irwin, went missing late Monday or early Tuesday.

Bradley says police told her she failed the test. She says they didn't show her any paperwork verifying the results.

Bradley says she told police that it was not possible and that she doesn't know where Lisa is.

Kansas City police spokesman Steve Young has declined to comment on any polygraph tests, citing the ongoing investigation.

Lisa's father, Jeremy Irwin, says he has offered to take a lie detector test, but that police say that's not necessary.