SALEM — A large group of local and federal law enforcement officers executed a search warrant Friday at the Salem home owned by Chad Daybell and his deceased spouse, Tammy.

The group of law enforcement, including the Rexburg Police Department, Fremont County Sheriff’s Office and the Forensic Unit from the FBI’s Salt Lake City Office, arrived at the home early Friday and stayed until 5 p.m. Marked and unmarked vehicles surrounded the rural property at 202 North 1900 East in Fremont County near Rexburg.

Officers spent time in the home and searched a shed on the property. At one point, they used metal detectors, probes and rakes to go over several portions of the yard.

Fremont County Sheriff Len Humphries told EastIdahoNews.com that law enforcement recently obtained sufficient probable cause to obtain a search warrant for the home. Officers were searching for forensic evidence such as blood or chemicals, which might shed some light on the Daybell case.

“This has been in the works for several days,” Humphries said. “When you are doing an investigation, you have to accumulate evidence, and the process takes time.”

Humphries would not say what the sufficient probable cause was that allowed them to get the warrant but said it is related to both the missing children and suspicious death cases.

“It’s all related,” Humphries said.

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FBI spokeswoman Sandra Yi Barker confirmed to EastIdahoNews.com that the FBI is assisting with the case.

“We were contacted by Rexburg Police on Nov. 27,” Barker said. “I won’t get into details but we are offering investigative, forensic and technical assistance in Idaho and Utah. Today, members of our Evidence Response Team are in Rexburg assisting with evidence collection. Our victim specialist has also been made available to the families of Joshua Vallow and Tylee Ryan.”

Police are investigating the disappearance of 7-year-old Joshua “JJ” Vallow and 17-year-old Tylee Ryan.

Joshua and Tylee have been missing since September, and their mother, Lori (Vallow) Daybell, and stepfather, Chad Daybell, are refusing to cooperate with police in their attempts to speak with the children to perform a welfare check.

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Investigators are also looking into the suspicious death of Tammy Daybell. She was found dead in the Salem home Oct. 19. Authorities initially thought her death was from natural causes but have since deemed her death suspicious and exhumed her remains Dec. 11.

Humphries previously told EastIdahoNews.com investigators are awaiting results from the autopsy and it could take several weeks before the results are released.

Chad and Lori are thought to have been married several weeks after the death of Tammy Daybell. Although both Chad and Lori are people of interest in the missing children case, they have not been charged with any crime.