Arizona Proposition 313 has passed. This is bad news, no matter how much the ballot measure’s backers portrayed it as a simple measure to indicate that “children are not for sale.”

Obviously, selling children is already banned, federally and in Arizona. And the specific crime that Prop 313 is concerned with—sex trafficking of minors—is already illegal at the state and federal level, with heavy prison sentences for those who disobey.

Proposition 313, which institutes a mandatory life sentence for this crime, passed with more than 60 percent of the vote, per the Associated Press. But this measure will mean more injustice in Arizona, not less. It could even mean more injustice for victims of sex trafficking.