ATLANTA -- Although she was the star witness in Hemy Neuman's murder trial last winter, Andrea Sneiderman isn't anxious to repeat the performance in connection with her own murder trial.

In a brief filed this month, Mrs. Sneiderman's attorneys ask a judge to allow her to postpone a deposition in her civil case, in order to avoid aiding her criminal prosecution.

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Mrs. Sneiderman is accused of conspiring with her former coworker Hemy Neuman to murder her husband Rusty outside a Dunwoody day care in November 2010. Neuman is serving a life sentence for the killing.

Her attorneys are trying to keep Mrs. Sneiderman from answering questions under oath in depositions before the trial. According to a court filing: "To protect herself, she may choose to assert her right against self-incrimination under the Fifth Amendment ... and refuse to answer certain questions."

In the brief, her attorneys say Mrs. Sneiderman wants to avoid a deposition in her civil case until after her criminal case goes to trial, likely in July. The brief says that civil attorneys in her wrongful death suit in Fulton County are feeding information to her criminal prosecutors in DeKalb County.

The brief suggests that Mrs. Sneiderman would be reluctant to testify in her own defense in the criminal trial, says a former prosecutor. "When they go to trial, based on the posture of where it is right now and what I've seen, it would surprise me if in fact she does testify," said Ken Hodges, a former district attorney in Dougherty County.

In a response filed today, an attorney for Mrs. Sneiderman's opponents in the wrongful death case says "it's obvious the defendant is terrified of testifying under oath."