On Monday Alabama governor Kay Ivey signed a bill into law that requires someone convicted of a sex offense against a child under the age of 13 to begin chemical castration a month before being released from custody.
Chemical castration involves administering medication via tablets or injection to take away sexual interest and make it impossible for a person to perform sexual acts.
If the person stops taking the drug, the effects will be reversed.
According to the law, if an offender chooses to stop receiving treatment, they will be in violation of parole and forced to return to custody.
Several other states have similar laws.
Opponents of the bill say forced chemical castration is cruel and unusual punishment and violates human rights.