(AP) — A 67-year-old private investigator in Omaha has denied federal allegations that she scammed a woman out of more than $850,000.

Patricia Walker-Halstead is listed on the Nebraska State of State’s Office list of licensed private investigators. Prosecutors say Walker-Halstead used the client’s money for gambling and personal expenses instead of on background checks and other security services.

Prosecutors say in documents backing up 11 counts of wire fraud that Walker-Halstead told her client that the client was being stalked and used other scare tactics to get the client’s money.

Walker-Halstead said at a Thursday news conference that she is not guilty. Walker-Halstead says she was hired in March 2011 to investigate several people, including the client’s former husbands and people she dated.