The Laundries' family lawyer has claimed Brian's father will help authorities find his fugitive son.
Brian, 23, was named a person of interest in the ongoing case when his now-deceased fiancée Gabby Petito went missing.
Lawyer Steven Bertolino said on Wednesday, October 6 that North Port police asked that Christopher Laundrie help officials find his son, who has been missing since September 14.
Bertolino told Fox News: "Chris Laundrie was asked to assist law enforcement in their search for Brian at the preserve today. Since the preserve has been closed to the public, Chris has not been able to look for Brian in the only place Chris and Roberta believe Brian may be."
While Chris did not participate in Wednesday's search operation, he and his wife Roberta "are hopeful there will be another opportunity to assist" investigators, Bertolino said, before claiming that authorities "had to postpone" Chris' involvement.
North Port police, however, have denied the lawyer's claims and indicated that asking family members to assist officers in the hunt for Brian would be against official protocol.
Josh Taylor, the North Port Police Department's chief spokesperson, said: "In no world would we be the agency asking the family to help search in an FBI-led investigation."
There has been no official statement from the FBI regarding the matter.
In spite of the statement of denial by police, Bertolino stood by his previous remarks but said that the request "perhaps" came from "a liaison to FBI."
Bertolino said police "wanted to narrow down some of the places in the park that Brian had liked to visit in the past", as reported by Newsday. "I think they’re just narrowing down their search based upon the inability to locate Brian on the previous days."
On September 15, 23-year-old Brian was named a person of interest, four days after 22-year-old Gabby was reported missing by her parents.
Brian and Gabby were traveling across the country in her white van and had been visiting state national parks on the West Coast before she suddenly disappeared.
On September 1, Brian returned to the North Port home that he shared with both Gabby and his parents - without his fiancée.
On September 17, Brian's mother and father told authorities that they had not seen their son since September 14.
On September 19, human remains were found in Teton County, Wyoming, which the FBI stated were "consistent with the description" of Gabby. Two days later, it was confirmed that the remains belonged to Gabby.
