Tucson police detectives accompanied the parents of Isabel Celis back to the family home Wednesday as part of their investigation into the 6-year-old girl's disappearance.
A police official said the return to the house was part of the "normal investigative process."
Detectives took Isabel's father, Sergio, and mother, Becky, into the house separately.
"The family has been cooperating," said police Lt. Fabian Pacheco at the 2 p.m. police briefing. "We are there with their consent to continue our investigation."
Isabel was reported missing from her midtown home on April 21. She was last seen by her family going to bed around 11 p.m. the previous night.
Detectives are continuing tracking down the numerous tips that have come in about Isabel's disappearance, Pacheco said. About 500 tips have been received, including about 100 since Tuesday.
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Pacheco said some of the tips "aren't very good, but they still have to be checked out."
He said the department remains positive as the search is in it's 12th day. "We continue to be hopeful that she will return to her family safe and soon," Pacheco said.
Police have not decided yet whether to continue the daily 2 p.m. briefings or send out updates to the media through email.
What's next
A softball tournament will raise funds for Isabel's parents, Becky and Sergio Celis, Saturday, noon to 7 p.m., at Kino Veterans Memorial Sports Park, South Country Club Road and East Ajo Way.
