Welcome to ACIS private investigators in Diamond Bar. Our private investigators are experienced professionals licensed with the State of California. We know there are hundreds of private investigation firms throughout California and the area near Diamond Bar, but none is like ACIS private investigators.  At ACIS our experience and expertise in the private investigation industry brings a different dimension to any scenario unlike other private investigation firm. We are a full-service private investigation business that offers other supporting services such as security and protection, process servers, notary publics, and bail agents.  ACIS collaborates with law firms and experts to assist clients from the time of arrest until the case is adjudicated.  ACIS private investigators are familiar with the courts and jails that have jurisdiction in Diamond Bar and have provided service to many clients in the Diamond Bar and Los Angeles County.

Catch Cheating Spouse|Mate

Diamond Bar Private Investigator  

Dealing with the possibility that your spouse or significant other is cheating on you is a very painful and devastating position to be in.  At ACIS Investigations, we try to make this situation for you as smooth as possible with peace of mind.

If you think your spouse or significant other talks to their lover from the home, we sell a device that if you plug to any phone jack in your house, it will record both ends of the phone conversation. We assist clients in catching cheaters with use of experience private investigators with use of various investigative techniques such as surveillance, gps, and technology.

Surveillance of Cheating Spouse  

We will follow your spouse or significant other on certain days or times that you think they could be cheating.  If your spouse or significant other meets any people of the opposite sex, we will take video/pictures of them together; write down the details of the lover’s car with license plate.  If need be we can also run the license plates of their lover to find out their name and their address.  Should you already know who the other lover is we can also do surveillance on them.

Corporate Employee Theft Investigations  

In California corporate employee theft is a common occurrence results in billions loss annually due to fraud, embezzlement, burglaries, copyright and patent violations.  At  ACIS Investigations in Diamond Bar, we offer corporate investigative Services on a monthly rate with proactive and reactive approach to recovering stolen property and prevention.  When you hire ACIS for corporate solutions, we protect corporate assets and employees using our private investigators and experts.