A judge in Mexico has granted the request of two people to use cocaine recreationally.
Although the move must be reviewed by a panel of judges on the higher court, it's a "historic step," according to the organization behind the cases.
According to Mexico United Against Crime says the ruling would allow the two petitioners to "possess, transport and use cocaine," but not to sell.
"This case represents another step in the fight to construct alternative drug policies that allow (Mexico) to redirect its security efforts and better address public health," Mexico United Against Crime said in a statement to AFP.
"We have spent years working for a more secure, just and peaceful Mexico. This case is about insisting on the need to stop criminalizing... drug users and designing better public policies that explore all the available options," the group's director, Lisa Sanchez told AFP.
Mexico has been moving toward less restrictive policies regarding drug use in recent years. President Andres Manuel Lopez Obrador has introduced legislation to decriminalize marijuana.