(KSL News) Searches like the one for Lori Hacking are not routine, but here's a look at two others that offer insight.
In Rhode Island, cadaver dogs sifted through garbage for two weeks to find the remains of three women killed during the past year-and-a-half.
Police say the suspect threw the victims' remains in dumpsters around town.
After an exhaustive search of the dump, police find a small piece of tissue from one victim and that led to murder charges.
In Tempe, Arizona, six years ago homemaker Cookie Jacobson disappeared. Police were sure she was murdered.
They searched the landfill for two months but, never found Jacobson's body.
Charges were never filed, despite blood in a trash can and an admission by her teenage children that they dumped her body.
The investigation used more than 15,000 man-hours and about 600-thousand dollars as crews sifted through eight-thousand tons of garbage.
Tempe police still consider the teens primary suspects and still believe Jacobson is buried in the landfill