(https://antipolygraph.org/graphics/dodpi-500.jpg)
The Defense Academy for Credibility Assessment, Fort Jackson, SC
(Formerly known as the Department of Defense Polygraph Institute)
The website of the Defense Academy for Credibility Assessment (DACA), which trains all federal polygraph examiners, has quietly vanished from the Internet. The site was formerly to be found here:
http://www.daca.mil
DACA's website had provided a calendar of classes, a catalog of courses offered (PDF attached to this post), directions to the school, and contact information.
Google's cache (http://64.233.183.104/search?aq=-1&oq=&hl=en&q=cache%3Awww.daca.mil&btnG=Search) of www.daca.mil returns no results.
While Archive.org's "Wayback Machine" similarly has no record of www.daca.mil, it does have records of the site as it appeared when DACA was known as the "Department of Defense Polygraph Institute":
http://web.archive.org/web/*/http://www.dodpi.army.mil