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Arizona DPS trooper faces second sexual assault charge; Cochise sheriff slams low bond

Wednesday, November 4, 2026 · Reported by KGUN 9 Local News

For Tucson residents who travel east on Interstate 10, a roadside emergency involving a law enforcement officer is supposed to offer reassurance, especially when someone is stranded after a crash. That trust is now at the center of a Cochise County case involving an Arizona Department of Public Safety trooper accused of inappropriate sexual conduct with a woman who had been involved in a hit and run crash near Benson. The trooper, 35 year old Aiden Rosebeck, faces two felony allegations, and the county sheriff is criticizing the decision to release him after a secured payment of $1,000.

The Cochise County Sheriff’s Office said the incident occurred late Sunday, Nov. 1, after the woman’s vehicle became disabled on the side of the road outside Benson. Rosebeck arrived before county deputies and was with the woman while she waited for help. During the response, the woman reported that the trooper engaged in inappropriate sexual conduct, according to the sheriff’s office. Investigators said Rosebeck acknowledged having a physical interaction with the woman, though the specific circumstances remain part of the active investigation.

Rosebeck was initially arrested on a felony charge of unlawful sexual conduct involving a police officer. The sheriff’s office also identified a felony charge involving sexual assault of a vulnerable adult. After the arrest, detectives continued gathering evidence and sent additional material to the Cochise County Attorney’s Office for review. That review resulted in another sexual assault charge involving a vulnerable adult, which prosecutors filed as a Class 2 felony.

The timing of the second charge became a central issue in the sheriff’s criticism. Rosebeck had posted bond on the original $10,000 amount, which required a 10 percent secured payment. That meant $1,000 was paid to obtain his release. As he was being released, the additional felony charge was filed. At his initial appearance, the court allowed him to remain out of custody on the same $10,000 bond for both charges.

Sheriff Mark Dannels said the bond did not reflect the seriousness of the allegations or the fact that the accused was a law enforcement officer responding to someone in distress. He said a bond decision should account for the complete set of charges, particularly when the allegations involve a vulnerable adult and an alleged violation of the public trust. Dannels described the secured payment of only $1,000 as a failure of the court, while also acknowledging that courts have independent responsibilities within the criminal justice system.

The sheriff emphasized that the investigation was conducted by county detectives who worked to collect facts, preserve evidence and prepare the case for prosecutorial review. He said the office’s responsibility is to seek justice and protect vulnerable people regardless of a suspect’s occupation or professional standing. Dannels also said a badge cannot shield an officer from accountability, and that people stopped along a roadway should be able to expect protection from an officer who responds to assist them.

The case has also prompted a separate administrative review within the Department of Public Safety. DPS confirmed that Rosebeck joined the department in 2020 and has been placed on unpaid administrative leave. While the Cochise County Sheriff’s Office is handling the criminal investigation, the department’s Internal Affairs Unit is conducting its own inquiry into Rosebeck’s conduct. DPS Director Colonel Jeffrey Glover said officers are given substantial authority and must meet corresponding standards of integrity and professionalism, adding that the department would investigate the allegations and hold personnel accountable under its policies.

For people in Tucson and Southern Arizona, the case underscores how quickly a routine roadside response can become a criminal and administrative investigation when a person in authority is accused of exploiting that position. It also raises questions about how bond decisions are made when new felony allegations are filed during the release process. The sheriff’s office said it respects the judicial process, but remains concerned about both the allegations and the decisions made so far.

The investigation remains active, and officials said additional information will be released when doing so will not compromise the case. Anyone with information about the incident, or anyone who believes they may have been subjected to suspected wrongdoing by Rosebeck, is asked to contact the Cochise County Sheriff’s Office at 520-432-9500. Rosebeck has not been convicted, and the allegations will proceed through the criminal justice system while the county and DPS continue their respective investigations.

This story was written by Tucsonans based on reporting from KGUN 9 Local News. Read the original report