Revises provisions relating to certain crimes involving controlled substances. (BDR 40-905)

SB 153 revises Nevada law to treat certain drug-related deaths as murder. If someone illegally sells, gives, or provides a controlled substance that causes another person's death, they are automatically guilty of murder under this law. The bill specifies that fentanyl, its derivatives, or mixtures containing fentanyl result in *first-degree* murder, while all other controlled substances result in *second-degree* murder. This directly affects individuals who distribute drugs leading to fatal overdoses, making the death a legal consequence of the drug sale without needing to prove foreseeability.