It was released on the RCA label in 2001 and features performances by Douglas, Chris Speed, Joe Daley, Mark Feldman, Erik Friedlander, Drew Gress, Bryan Carrott, Michael Sarin, Ikue Mori, Joshua Roseman and Yuka Honda with Tom Waits providing vocals on one track.

[1] The Allmusic review by Alex Henderson awarded the album 4 stars stating "One of the things that makes Dave Douglas such a compelling voice in avant-garde jazz is his open-mindedness.

[2] On All About Jazz David Adler stated "With Witness, Dave Douglas's first overtly political album, the trumpeter/composer stimulates our imaginations even as he encourages us to confront global injustice".

[3] In JazzTimes Doug Ramsey wrote "Dave Douglas focuses his artist's conscience and political acuity on our time and finds plenty to protest.

His Witness, initially inspired by arms profiteering during the war in Yugoslavia, also concerns itself with the suppression of political rights, social justice and feminist aspirations.