They have described the image as "not appropriate", but otherwise are remaining tight-lipped.
Some on the internet have queried whether the image is of a real officer or a hoax.
What's not in doubt is that the picture is a bad look for the police, an organisation which, above all others, relies on the respect of the general public.
That respect has taken a blow in recent years through several high-profile incidents, and fun or not, this picture does nothing to help rebuild that level of gravitas.
It's also horribly insensitive to the families of those police officers who have been killed in the line of duty, at a time where violence against police appears to be becoming more prevalent.
Whether the person with the gun to his head in the photograph is a genuine police officer or not, his actions in posing in this manner are childish, stupid, and utterly unbecoming of the uniform he is pictured wearing.