Chapter 43Det. Britto stood and paced. “Well, ma'am, if a lot of time has passed…” He brought fingertips to his forehead as if deep thinking. “The mind has a way of convincing itself to believe what it wants.” He looked at Abi, then to the others and then opened out both hands. “Tess might have convinced herself to believe she didn't see the ring being sold. Then her mind would accept that.”
“But it wouldn't be the truth. How can her mind not know the difference?”
“It all depends on her attitude. If she doesn't care, and has no fear of repercussions, that's what the polygraph will detect.” He placed his hands on the back of a chair and leaned slightly forward. “Her lie wouldn't register.”
Polygraphs are most useful if a perpetrator is caught at the point of remorse or guilt, but not rig
