A 21-year-old woman pleaded guilty Thursday to a conspiracy charge for serving as a lookout in connection with a December robbery at Walmart, 3300 Iowa.

Jadin M. Schmutz told a judge that she and her husband, Andrew Schmutz, 21, who has already pleaded no contest in the case, watched for law enforcement officers at the urging of two co-defendants, Lonnie Schaefer, 22, and William Paterson, 19, both of Lawrence.

Paterson has pleaded guilty to using a BB gun to rob the store’s money center Dec. 13 and is serving a nearly five-year prison sentence. Schaefer faces an October trial in the case.

Jadin Schmutz’s defense attorney Carl Folsom said the two parties believed Schmutz would qualify for an 18-month probation term, and Kathleen Britton, an assistant district attorney, said prosecutors would not seek any jail time for Schmutz in exchange for testimony against Schaefer.

District Judge Michael Malone is scheduled to sentence Jadin Schmutz on Sept. 23 and Andrew Schmutz today. Prosecutors accuse two other co-defendants, Billie Jessup and Nathan Moses, also of serving as lookouts for the robbery.