Southern District of New York Judge Lewis A. Kaplan on Thursday released his full opinion on the credibility of a critical witness he blocked from testifying at the trial of accused al-Qaida conspirator and U.S. Embassy bomber Ahmed Khalfan Ghailani.

In his 60-page opinion elaborating on his Oct. 6 three-page public order barring Hussein Abebe from the witness stand, Kaplan called Abebe’s testimony “false” and “quite incredible” on the key issue of whether he was coerced into testifying by threat of prosecution either in New York or in Tanzania.