A traveler surveillance system in Hawaii is bringing the potential civil-liberties pitfalls of disease detective work into clearer—and more disturbing—focus.

In June, Lori Vallow’s estranged husband wrote that she and Chad Daybell were “up to something.” Two weeks later he was dead.

She waived extradition back to Idaho after a judge refused to lower her $5 million bail.

Lori Vallow is being held in lieu of $5 million bail until a hearing to determine if she will be extradited to Idaho.

A distraught Sonam Saxena had claimed he last saw his wife on Tuesday night on a secluded Hawaiian beach.

“She helped me reconnect with Lori so quickly and it helped my children move forward.”

Tylee and J.J. Vallow have been missing for four months. A court ordered Lori Vallow to appear with them in Idaho on Thursday.