Andrew Mitchell said last week that he hoped Pc Toby Rowland would give evidence on oath as part of separate libel proceedings against the Sun newspaper.
Mr Mitchell told Channel 4 News: "What I do know is that I was stitched up; I was fitted up in Downing Street by armed police officers ...
"We believe that the CCTV shows that the account of Pc Toby Rowland is at very best inaccurate."
More top news
Misty and fog readily developing
Mr Ramaphosa, South Africa's deputy president, is likely to succeed current President Jacob Zuma when his term in office ends in 2019.
ITV News has uncovered claims that some anti-poaching rangers working in a UK aid-backed project were complicit in elephants' slaughter.