Last week the Garland County Sheriff's Department received information that escaped convict Derrick Estell and his alleged accomplice Tamara Upshaw may try to go Dallas County Missouri, as Estell has frequented that area in the past. Dallas County officials are working diligently to try and determine if the two are in fact in their area. Any questions related to Estell and Upshaw (sightings, searches, etc.) in Dallas Co. Missouri should be directed to the Dallas County Sheriffs Department. Garland County Sheriff's Department investigators are still following up on tips received locally.