This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
Some organizations do mass DNA collection from kids to help identify them later in life.
The school sends out a notification that the parents can sign up to have their kid swabbed so their kid’s tiny corpse can be identified. They don’t word it like that, but that is the idea.
So he may have been swabbed as a kid and they referenced that.