ROCKVILLE, Conn. (AP) — Connecticut’s top prosecutor testified Wednesday the state had no written policies on when to seek the death penalty but that state law provided enough guidance.

Chief State’s Attorney Kevin Kane was the first witness to take the stand in a trial involving five death row inmates who say prosecutors’ decision-making process in death penalty cases has been arbitrary and fraught with racial and geographical biases. The inmates are suing the state and seeking to have their death sentences overturned.