Some people in this forum posted about had committed crime (summery and indictable) did their time and they got their citizenship without too much delay like my cases.
check this guy :
(Canadian Citizenship Application with Arrest Record from FBI, any chance for me?)
https://www.canadavisa.com/canada-immigration-discussion-board/threads/canadian-citizenship-application-with-arrest-record-from-fbi-any-chance-for-me.766749/#post-10069131
Application Received:
6/27/2022 -> Oath Ceremony in person at Mississauga office:
11/9/2022
the trigger probably not committing crime but something like common name in global lists like the one the ICES,PPP etc.. maintains
I have passed BCG + Prohibition, not just completed but written (PASSED), never got time to travel 30 KM outside Toronto downtown in last 7 years, so it's not about crimes or travelling history.
I remember a guy in this forum or in Facebook he mentioned he has security clearance + work in the government Federal position and also stuck in Grant DF
second trigger is just an officer that doesn't like something about your application due to urgent requests/ATIP requests/ just doesn't like your application lol etc.. (taking into consideration of IRCC transparency issues ) I start to believe this is the 40% would the trigger, 30% name match, 30% CSIS refers our application to this process. because this is the only step we know it's completed but we don't see if passed or not passed.