Why do ghost hunters investigate in the dark? September 27, 2022September 5, 2016 by Cody Polston So why do ghost hunters investigate in the dark? Does it really make sense? Related posts:Valverde Battlefield (Photos from Investigation)Sir William Crookes (1832 – 1919): Paranormal Investigators of the PastLeave Orbs alone!The “anecdotal evidence is invalid” argument.