The police department was supposedly doing this in order to comply with a new Californian privacy law. The images alone are worth a click.

https://www.reddit.com/r/funny/comments/1bk790d/police_post_photos_of_criminal_suspects_with_lego/

https://www.forbes.com/sites/jamesfarrell/2024/03/23/california-police-department-stops-using-lego-heads-for-suspect-photos-after-viral-posts-heres-why/

https://www.foxnews.com/media/lego-instructs-california-police-department-stop-using-lego-heads-mask-identities-suspects