Keystone Intelligence Network, Inc. 

Keystone Intelligence Network, Inc., is a one stop fully staffed investigative firm that provides a full line of confidential investigative services. We offer a full menu of professional services for the legal and business communities.

Do you need professional investigative and/or security assistance? Do you want investigative results which reflect the finest standards in the industry? Enjoy that feeling of trust that comes from dealing with professionals? We offer you this, and more.

 

"...because we have one hundred fifty years of combined
investigative experience working for you."
-- William L. Fleisher, Director

Keystone Intelligence Network, Inc.'s staff of investigative, security and polygraph professionals have many years of experience in federal, state and local investigative law enforcement and private security operations.

Site updates

The second edition of Effective Interviewing and Interrogation Techniques has been released. Click here for additional details.

Our new press section includes Keystone Intelligence Network, Inc. articles from People magazine, Philadelphia Magazine, CityPaper and more.

1704 Locust Street Philadelphia, Pennsylvania 19103  office: 215.545.1111  fax: 215.545.1773