Karen Matthews is still being held by police investigating the alleged abduction of her nine-year-old daughter Shannon in West Yorkshire.
Detectives are not ruling out the possibility of further arrests in the days and weeks ahead.
Officers have been questioning the girl's mother on suspicion of perverting the course of justice.
They will be particularly interested in her movements during the 24 days that Shannon was missing after failing to return home at the end of a primary school swimming lesson in Dewsbury.
With Mrs Matthews under arrest, the investigation into the suspected abduction of her daughter is still very active.
Five members of Shannon's extended family have been arrested since she was discovered by the police hiding in the drawer of a divan bed.
Her mother's partner Craig Meehan and his uncle Mick Donovan are both being held on remand.
Meehan is charged with possession of indecent images of children and Donovan due to stand trial in November for kidnap and false imprisonment.
Meehan's sister Amanda Hyett is currently on police bail after being arrested and questioned on suspicion of assisting an offender.
Her mother Alice Meehan was also released on police bail after being arrested on suspicion of perverting the course of justice.
The five arrests follow one of the biggest searches for a missing person the country has ever seen.
For more than three weeks Operation Paris tied up around 10% of West Yorkshire Police's operational strength.
Hundreds of homes were searched, many of them on the so called 'red route' - the streets Shannon would have walked along if she had returned home from school.
Mrs Matthews, 32, was at the centre of a community effort to keep Shannon's disappearance in the media, making several emotional appeals for her daughter's return.
Family, friends and neighbours printed leaflets and T-shirts and organised community events to keep Shannon's disappearance in the public eye and The Sun newspaper offered a 50,000 reward for information.
West Yorkshire Police always insisted they were keeping an open mind about what had happened to Shannon.
The team of detectives continued its investigation after she was found last month and is now working through forensic evidence as well as interviews from suspects and witnesses
http://www.myfoxutah.com/myfox/pages/News/...mp;pageId=3.4.1It was likely they got the idea from the Madeleine Mccann case, where the family recieved around 3 million in reward money. I've seen an interview with some family members when she was missing and all they could talk about was how much money they were getting. Apparently, when she was found, the first thing the aunt asled the police was 'can we keep the cash?'