The U.S. Supreme Court has ruled that states need to use more than just an IQ test to show a person's mental competence when put on death row.
The court ruled on a case in Florida where state law says inmates scoring 70 or higher on an IQ test are competent enough to face the death penalty
The justices found there is a margin of error in IQ test results.
The court says any inmate whose score falls within in the margin of error has the right to present other evidence to support their claim they're not mentally able to face the death penalty.
"People who are trying to take advantage of the IQ test will be required to prove evidence and those who are saying that they are disabled even though they may score higher than 70 they may have to provide additional evidence," says Dougherty County District Attorney Gregory Edwards.
Medical professionals say people who score as high as 75 can be considered intellectually disabled because of the test's margin of error.