https://twitter.com/AndrewLawton/status/1495433223698063363
This is the innermost perimeter. Police are allowing journalists in, but only those with “credentials.” I offered ID and letter of assignment from editor which was not accepted. Appears from seeing others go through that only Parliamentary Press Gallery membership suffices.
https://twitter.com/RebelNewsOnline/status/1495433500735987713
Today Ottawa police wouldn't let our reporter film in downtown Ottawa saying that she doesn't have press credentials and rejected her Independent Press Gallery card because “It’s a laminated piece of paper you could have made at home.”
Just to clarify do you mean from that group? Your use of "of" could be interpreted as a distrust towards the group.
Paraphrase: "This will accelerate increasing lack of trust in properly credentialed media."
Hope that helps.