General Contact Number: (530) 621-5567

Sheriff's Office

Investigative Services


The Investigations Section is part of the Operations Division of the Sheriff’s Office.  The section consists of fourteen full-time detectives, a crime analyst, one sergeant and one lieutenant.  The Investigations Unit puts in the long hours investigating the most complex crimes, keeping the patrol deputies available to respond to calls for service. 

Investigators specialize in a variety of assignments, including: Property Crimes, Elder Abuse, Financial Crimes, High Technology Crimes, Sexual Assault, Persons Crimes, Homicide, and Cold Case Crimes. 

These crimes are typically felony level crimes that may require a large amount of time and resources to solve. It is the highest priority of the Sheriff’s Office to uncover all evidence in order to bring closure to a case.

During large scale investigations or critical incidents, detectives come together as a unit for these complex events.  In order to better serve the community and victims of crimes, the Investigations Section works cooperatively with other law enforcement entities throughout the county, as well as other jurisdictions, and has many partnerships with government and community based organizations.  

Registrants – Sex, Narcotic, Arson and Gang

-Subjects who have been classified as a Sex, Arson, Gang or Drug Registrant are required by law to register with the law enforcement agency having   jurisdiction over their place of residence.

-This service is provided by appointment only. 

-Click Here to schedule your appointment online or call (530) 642-4703.

-Registration hours on Tuesdays and Thursdays from 10:30 a.m. – 2:30 p.m. 

-This includes new registration, yearly registration, change of addresses etc. 

-Please bring ID with you and provide us with the date and place of your conviction. 

-Registration takes approximately 30 minutes. At that time you will be fingerprinted and photographed.

**If you are a South Lake Tahoe area registrant, please call (530) 573-3000 to schedule your appointment by phone**

The Investigations Unit is located at 200 Industrial Drive, Placerville, CA 95667.  If you have questions regarding an ongion case or if you have information pertaining to an active case, please call (530) 642-4703.  


Crime Scene Investigation

The Crime Scene Investigation (CSI) unit is comprised of 12 Deputy Sheriffs and is a collateral assignment within Patrol.  C.S.I. works directly with detectives in investigating major crime scenes such as homicides, any deaths with suspicious circumstances, officer involved shootings, and armed robberies.   

C.S.I. is responsible for searching the scene of a crime for evidence and for preserving the scene and evidence through thorough documentation and evidence collection.  The scene is documented using various methods including detailed reports, video, photography, DNA collection, and by utilizing laser diagraming equipment and software.


The CSI unit also analyzes evidence collected by patrol from burglaries, assaults, and stolen vehicles. This evidence is often processed for fingerprints and DNA evidence.  All criminal evidence processing is performed in the CSI lab. The CSI unit responds to callouts 24 hours a day and are prepared to process any scene.