Here is a link to the official investigations on the subject.
http://www.jewishvirtuallibrary.org/jsource/History/liberty2.html
| Investigation | Date | Conclusion |
| U.S. Navy Court of Inquiry | June 10-18, 1967 | The attack was a case of mistaken identity. Calm conditions and slow ship speed may have made American flag difficult to identify. No indication the attack was intended against U.S. ship. |
| CIA Report | June 13, 1967 | The attack was not made in malice and was a mistake. |
| Joint Chiefs of Staff Fact Finding Team (Russ Report) | June 9-20, 1967 | Outlined "findings of fact," bud did not make any findings about the actual attack. |
| Clifford Report | July 18, 1967 | No premeditation, but "inexcusable failures" by Israeli forces constituting "gross negligence." |
| Senate Committee on Foreign Relations | 1967 | Secretary of Defense McNamara testified he supported conclusion that the attack was not intentional. |
| Senate Armed Services Committee | Feb. 1, 1968 | No conclusion. Secretary McNamara makes comparison of attack on Liberty to that on Pueblo with regard to uncertainty about what was happening at the time of the incident. |
| House Appropriations Committee | April-May 1968 | Navy communications "foulup" and no conclusion regarding Israeli actions. Much of report remains classified. |
| House Armed Services Committee | May 10, 1971 | Critical of Navy communications, no conclusion regarding Israeli actions. |
| Senate Select Committee on Intelligence | 1979 | Responding to critical book by Liberty crewman James Ennes, Senate investigation found no merit to his claim attack was intentional. |
| National Security Agency | 1981 | Liberty was mistaken for an Egyptian ship as a result of miscalculations and egregious errors. |
| House Armed Services Committee | June 1991 | Responding to request from Liberty Veterans Association, Subcommitte on Investigations launched probe that concluded there was no evidence to support allegations made by the Association and no reason for further investigation. |
Israeli Investigations
| Investigation | Date | Conclusion |
| Ram Ron Commission | June 12, 1967 | The attack was made "neither maliciously nor in gross negligence, but as the result of a bona fide mistake. Also notes that the Liberty made a mistake as well by carelessly approaching a war area. |
| Preliminary Inquiry | July 1967 | There was no malicious intent and no deviation from the standard of reasonable conduct that would justify a court-martial. |
| IDF History | 1982 | The attack was a result of an "innocent error." |
Source: A.J. Cristol, "The Liberty Incident," Ph.D. dissertation, University of Miami, 1997, pp. 86-113.
 |