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    Dietz Associates

    3.0 (2 reviews)

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    2 years ago

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    2 years ago

    Mr. Don Vo was critical in getting false accusations of domestic violence against me dismissed.

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    Nighthawk Investigations

    Nighthawk Investigations

    3.3
    (7 reviews)

    I usually don't like to leave the bad reviews, rather I wanted to work with people to make it work…read moreand get results. On 10/30/2025, this company signed contract with me, and took my cashier's check at the same day! Please look at your contract before argue back! But after 2 weeks of time with this company, I felt like they like to promise big but get nothing done! No results what soever, zero, ground zero after 2 weeks of payment and agreement signed! Lack of engagement to the job assignment but still promising big at the very last-minute saying "I believe I can". Then there is no result, no strategies, most importantly they simply did not devote any time to do the surveillance duty. They did nothing but pull out two vehicle records (one was right and the other one was wrong) from online. No basic investigator's analytical skills to make the right direction for the case. I even had to correct it one time when the conclusion was obviously wrong. All they wanted is to take the money, promise big, drag on the work but get nothing done, and hope you leave them alone. Unlike other investigators who simply do not take the job and money if they think they cannot deliver the results. This investigator is totally wasting my time and the money here. Also, they wanted me to do some work for them, so I had to drive there myself three times at least in the past 2 weeks to get a basic idea what was going on....

    So much for privacy and truth. We asked for surveillance, nothing else. You evaded my calls told me…read moreyou were working on an important case.... How dare you put all this private information on here. Anyone looking for a PI to give money too without any return, this is your guy.

    California Detective Agency

    California Detective Agency

    5.0
    (1 review)

    On advice from my lawyer, I retained CDA to help me enforce a judgment against a defendant in a…read morelawsuit. They were quick to find assets and income, and even helped me with the next steps of taking what they found. Overall, my case was paid in full within a short time, and the entire judgment enforcement process was easy. I'm thankful I found them.

    From the owner: The most advanced investigations company, we serve individuals, attorneys, businesses and insurance…read morecompanies. Our private investigators include leading experts in law enforcement, personal protection, research, and investigations. We have access to the same data that law enforcement uses to locate criminals and witnesses. Over 90% of our missing persons are located within 24-48 hours. Most other private investigators subcontract out their assignments to low-paid unlicensed employees who have no experience. At California Detective Agency, the person who you talk to on the phone is the person who will actually manage your case. Ask the competition who they're going to "assign" your case to. You may be surprised! We are here for you for a phone consultation when you are ready. Our Services Include: Surveillance Helicopter Surveillance Locate People Background Checks (criminal history, civil history, marriage records, address history, property ownership, business history, verification of education, and more) Data Research Asset Research and Seizure Trash Pickup & Analysis Enforcing Judgments

    Dietz Associates - privateinvestigation - Updated August 2026

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