​​Associate investigators are trained and skilled in their areas of expertise. This provides the Criswell Investigation Agency with competent, versatile staff which takes pride in quality proficiency.  

We specialize in criminal, civil, local, national and international investigations. Emergency service is also available. 

Serving individuals, Corporations, Law Firms, Non-Profits worldwide.

Expert investigation of Civil and Criminal cases of all tyoes including:

  • State Courts
  • Federal Criminal Justice Act (CJA)
  • United Nations International Criminal Court Tribunals (ICC)

Criswell Investigation Agency is a full service private investigation firm. Donald Criswell has a comprehensive investigative background in the public and private sectors. A recognized authority in this field, he's trained hundreds of investigators throughout the country in successful, legal techniques. 


We are open 24 hours a day, 7 days a week. The languages of our staff of skilled interpreters include: Bosnian, Serbo-Croatian, Vietnamese, Arabic, Chinese, Dutch, English, French, German, Greek, Hindi, Italian, Japanese, Korean, Polish, Russian and Spanish. 

Criswell Investigation Agency

Donald G. Criswell

​Private Investigator License 16442

P.O. Box 3103 Paradise, CA 95969

819 Eddy St., San Francisco, CA 94109

Phone:(530)872-5338  Fax:(530)872-5066

Toll-Free Telephone:(877)872-5338

International Telephone: 001 530 872 5338