All Cases, Investigative Services (ACIS)

Private Investigator - Detective     
Ontario | Riverside | San Bernardino | Los Angeles 
Bring the Truth to Light
with ACIS Detectives
We give clients Free Consultation 24/7
Office Hours:

9:00 a.m.–10:00 p.m.

Office Hours:
10:00 a.m.–7:00 p.m.

Toll Free: (866) 920-2620

Service Area:
Southern California: Ontario, Murrieta, Monterey Park, San Bernardino County, Orange County, Los Angles, Riverside, Ventura
California Association of Licensed 
Investigators, Since 2007
ACIS Services Links:
Missing Person Infidelity  Surveillance Skip Trace-Locates Process Service Asset Recovery Bank Account Locate 
Blog GPS tracking Surveillance
• Missing Person • Infidelity • Surveillance
• Skip Trace-Locates • Process Service
• Asset Recovery • Bank Account Locate
• Blog • GPS Tracking

Private Investigator
Upland, California
(909) 620-0139 Local

Catch Cheating Spouse
Private Investigator

At ACIS in Upland, California, our private investigators are on call and available for consultation 24/7. We specialize in all areas of private investigation such as, cheating spouse, matrimonial & infidelity, partners, surveillance, cohabitation, alimony reduction and termination, child custody, missing persons, background checks and investigations. ACIS private investigators in Upland California will conduct your investigation discreetly and with the utmost confidentiality. ACIS private investigators are licensed by the California Bureau of Security and Investigative Services ("BSIS") to transact business as a private investigation firm and are licensed bonded and insured. All ACIS private investigators have prior law enforcement background. Call us if you need help. We will meet you anywhere of your choice to discuss your case privately. There is always a free consultation for services. 

Criminal Investigation
Private Investigator
Upland, California
(909) 890-0592 Local

At ACIS investigations in Upland, California and the surrounding cities, our private investigators work with law offices to assist with criminal defense. Our PI's are familiar with the criminal justice system and the roles and personnel working in the system. Once ACIS investigations is assigned a case, a manger will review the case and assigned a private investigator (pi) to review your case and provide a comprehensive investigation to support defense strategy when defending criminal matters. The case review entails examing all facets of the prosecution case and preparing reports ponpointing the strength and weakness covering each of these crucial areas:

  • Initial Police Contact and reasonable suspicion
  • Probable Cause, Search & Seizure
  • Interview & Interrogation
  • Evidence & Chain of Custody
  • Witness Statements & Identification
  • Police Lineup
  • Detention
  • Miranda
  • Alibi 

 Private Investigator
Process Service
Upland, California 

At ACIS private investigations in Upland, California, our private investigators work to provide clients with accurate information.  We will only conduct locate investigations for appropriate reasons (process service, missing family member, friend, collect debt, or bail fugitive.)  Our fee for locate investigation is $75.00 per hour with an initial $300.00 retainer fee. In many instances, the intial retainer will cover the cost for a simple locate.  However, there are some cases that are difficult and more labor intense requiring use of surveillance and other investigative techniques over a period of time.  We charge hourly rate if the individual is not located within the first 3-5 hours. 

Private Investigator
Upland, CA
(909) 278-0059 Local

Private investigators at ACIS in Upland, California can assist you in investigations where covert operations are required.  We specialize in covert electronic security measures, including covert CCTV camera systems, covert GPS racking systems and electronic counter measures for our corporate clients. These devices can be employed to undercover theft, detect corporate espionage and to ensure compliance of drivers, sales persons and other employees.  Contact ACIS Upland for a free consultation to see if electronic security can be Your investigative solution.