retributivist
/rɪˈtrɪbjʊtɪvɪst/noun
A believer in or advocate of retributive justice, especially in punishment for wrong or illegal acts.
adjective
Of or relating to retributivism; characterized by advocacy of retributive justice, especially punishment for wrong or illegal acts.
Origin
1930s; earliest use found in Mind. From retributive + -ist.