Keep your eyes on the mission: We will handle the details!

CSI is a full service Yuba City | Sacramento | Marysville, California licensed private investigation and process serving agency specializing in meeting your needs for discreet and professional services throughout the state of California. A private investigator you can trust. We treat each case with the utmost respect for your privacy and always conduct our investigations in a discreet, confidential and professional manner.

We will discuss your goals, options and potential costs for your investigation needs. We work with you to get what you want using only legal procedures.
From the Owner.

I would like to take the opportunity to introduce myself and explain why you should consider CSI Investigations to assist you with your matter. This agency is owned and operated by me, Shelby Clements. We are a small company; small enough to provide you with customized attention yet large enough to handle multiple investigations simultaneously. Unlike our competitors, you will deal directly with me, the owner, from the onset; I will personally provide you with your free consultation and will personally be involved with your investigation. If you have any questions and/or concerns you will speak directly with me; you will never deal with anyone else.

How can we help you? Call (530) 701-4936 or email us at csiyubacity@gmail.com anytime. Need a quick confidential response? Go to our contact us page and fill out the form.

C.S.I. serves, but is not limited to, the following cities and surrounding areas.

Angels Camp | Antioch | Auburn | Benicia | Biggs | Brentwood | Cameron Park | Ceres | Chico | Citrus Heights | Colfax | Colusa | Concord | Davis| Dixon | El Cerrito | El Dorado Hills | Elk Grove | Escalon | Fairfield | Folsom | Galt | Grass Valley | Gridley | Hercules | Ione | Isleton | Jackson | Lathrop | Lincoln | Live Oak | Lodi | Loomis | Manteca | Martinez | Marysville | Modesto | Natomas | Nevada City | North Highlands | Oakdale | Oakley | Orland | Oroville | Paradise | Pinole | Pittsburg | Placerville | Rancho Cordova | Red Bluff | Redding | Richmond | Rio Vista | Ripon | Riverbank | Rocklin | Roseville | Sacramento | San Andreas | San Pablo | S. Lake Tahoe | Stockton | Suisun City | Tracy | Truckee | Turlock | Vacaville | Vallejo | Valley Springs | Walnut Creek | West Sacramento | Wheatland | Williams | Willows | Woodland| Yreka | Yuba City.