I think we all have some healthy skepticism on the veracity of our respective Fish/Game/Natural Resources departments. They, as institutions go, are an insular lot, many thinking they "know what's best" while discounting the public and they all play "I've got a secret" at the championship levels.
I will provide another anecdotal story...in the late 70's in Eastern Idaho, "before" the grey wolf was officially recognized as introduced, one of our sheep herders killed three very large, very black and very hungry skinny wolves over a dead sheep wolf kill. My Dad dutifully called the Idaho F&G when he got to town and reported the 3 killed wolves and the repeated by several official's response was "those are coyotes or dogs. There are no wolves in Idaho" My Dad, frustrated, said wisely, "OK, well I have them in the back of my truck and I am heading over to the local newspaper and TV station. You can find me there." That they did and snatched up the three carcasses quickly, but not before the newspaper snapped a few pictures. Quite the stink for a while, with F&G finally admitting they were collaborating with the Feds on reintroduction of wolves in Yellowstone, that had yet to be publicly announced.
It appears that these three were roaming juvenile wolves, not introduced. Yet if they hadn't been trying to play "I've got a secret" there would not have been the stink that came of it that there was.