A Santa Clara County sheriff’s commander was arrested in Las Vegas this week after she allegedly was caught bodybuilding despite claiming an injury that put her on limited duty, authorities said.

Lt. Mandy Henderson, 41, was arrested by the Las Vegas Metropolitan Police Department and booked into Clark County jail Wednesday on a warrant alleging California criminal and insurance code violations involving workers compensation fraud.

Authorities began looking at Henderson after investigators learned she was “engaging in strenuous workouts while on work restrictions due to an alleged injury,” according to a sheriff’s office news release.

“The Sheriff’s Office has high expectations of every individual who has sworn an oath to uphold the law,” Sheriff Laurie Smith said in a statement. “If these allegations are true, it is a violation of the public’s trust, sullies the standards of our office and for that, Mrs. Henderson should be held accountable.”

Social media accounts linked to Henderson show that she is an avid bodybuilder and display photos of her at what appear to be bodybuilding exhibitions or competitions. Sources familiar with the case told this news organization that she has had past instances of being placed on limited duty due to a claimed injury.

Henderson, who has worked in the Sheriff’s Office for over 15 years, is awaiting transport back to the Bay Area, and jail records show she has a court hearing scheduled for Monday morning. The Santa Clara County District Attorney’s Office confirmed Friday that criminal charges have been filed in the case.

The Deputy Sheriffs’ Association, which represents patrol and enforcement deputies like Henderson, declined comment Friday. A Las Vegas police spokesman could not be immediately reached for comment.

The Sheriff’s Office noted that an internal affairs investigation has been launched on top of the criminal investigation into the allegations against Henderson.

“The alleged actions of Mrs. Henderson do not represent the vast majority of deputies who perform their duties honestly and with integrity,” Smith said.

The public pay database Transparent California says Henderson last year received $33,736 in pay and $27,550 in benefits. In 2016, she received $155,206 in pay and $78,873 in benefits.