The Democrat-led House Select Committee to Investigate Jan. 6 doctored a key piece of its evidence, adding audio to silent U.S. Capitol Police security footage used to create a dramatic video montage for the opening of its primetime hearings last summer, according to a Just the News review of the original raw footage and interviews.

In at least two instances identified by Just the News, the panel’s sizzle reel that aired live and on C-SPAN last June failed to identify that it had overdubbed audio from another, unidentified source onto the silent footage. Multiple current and former Capitol Police officials as well as key lawmakers and congressional aides confirmed that the closed-circuit cameras that captured the video do not record sound and that it was added afterwards.

A former spokesman for the Jan. 6 committee told Just the News that the panel was supposed to clearly mark any video that was dubbed with another audio source, and it did so on some occasions in the sizzle reel.

But Just the News identified two key pieces of Capitol Police closed circuit television (“CCTV”) footage — one from an inside angle showing the dramatic breach of a key entrance to the Capitol by rioters and the other an aerial view of the agitated crowd outside – from a camera system that Capitol Police officials confirmed did not have sound recording capabilities. Yet, the footage shown by the committee inexplicably included sound on the video montage they produced. That video is without any disclaimer showing the audio had been dubbed.