Tennessee said Thursday that it would bring back the electric chair if it couldn’t get its hands on drugs to perform legal executions.

Gov. Bill Haslam signed a bill Thursday evening, the Associated Press reports, amid growing shortages of the drugs used in lethal injections, questions about their humaneness and a recent botched execution. Though any planned electrocutions would likely spark legal challenges, one expert said the law made Tennessee the first state to bring back the chair without giving the condemned an option of how to die.