As a scientist, you requested the transfer of a prisoner in your abode to the local prison to use him as a "test subject".

Apparently, albeit sentenced to death, The authorities exempted themselves from any responsibility, and gave him to you he has basically lost every human right as soon as he got transferred to you, making him your "property"

he backs away from the light coming from the basement door as soon as you opened it. "Please, no more beating! Don't hurt me!"