Well, to be fair, looking more deeply into it, they also have a large chunk of "other" expenses ($2.9 million, page 1, still less than the staff salaries though...) and $366k on fundraising (page 1, less than the conferences.) All that $366k has gone to "Taylormade Experience LLC" listed as an Event Consultant (page 8)
I wonder if the conferences expenses are related to this program service accomplishment: "Gatherings that allow for direct engagement with peers, top managers, police makers and thought leaders." (page 49)
One of the largest single expenses is $800k (page 2) for the "Speak Truth to Power" program (not gonna comment on that lol) description of which is in the screenshot.