Update: On Oct. 16, Robertson pleaded guilty to driving under the influence on May 5. She was sentenced to 10 days in jail, 48 hours of community service, 12 months probation and to pay a total of $1,931.50 in fines. She got credit for 1 day served.

A Larimer County Sheriff's Office deputy arrested for allegedly driving under the influence last weekend is also the subject of an internal investigation.

Paige Robertson, 26, was arrested about 2:25 a.m. Sunday in the 100 block of East Oak Street, according to arrest documents. She was not arrested as part of Fort Collins Police Services' DUI checkpoint.

Robertson was arrested on suspicion of driving while under the influence of alcohol or drugs and driving with a blood alcohol concentration of .08 or higher.

The sheriff's office is aware of the Fort Collins police investigation into Robertson and takes the issue very seriously, public information officer David Moore said.

The sheriff's office has also started an internal investigation into Robertson's arrest.

Robertson was hired with the sheriff's office in June 2013 and works in an administrative role in the sheriff's office as the coordinator for Americans with Disabilities Act, or ADA, compliance, Moore said.

Robertson has not been placed on paid leave because, in her role with the sheriff's office, it doesn't make sense to place her on paid leave, Moore said.

Sheriff Justin Smith is "highly disappointed by the incident," Moore said, and he remains committed to following due process before taking any disciplinary action against Robertson.

Smith also does not expect the investigation to take long to conclude, Moore said.

Robertson is next scheduled to appear in court May 23.

All suspects are presumed innocent until proven guilty in court. Arrests and charges are merely accusations by law enforcement until, and unless, a suspect is convicted of a crime.

Sady Swanson covers crime, courts, public safety and more throughout Northern Colorado. You can send your story ideas to her at sswanson@coloradoan.com or on Twitter at @sadyswan. Support our work and local journalism with a digital subscription at Coloradoan.com/subscribe.