She had abandoned her baby on a platform of the RER station of Juvisy-sur-Orge, in Essonne.
A 32-year-old woman was referred this Wednesday to the judicial court in Évry-Courcouronnes.
She will be tried in early December for neglect of a child.
"She was placed under judicial control, with a ban on coming into contact with the child," said Caroline Nisand, the public prosecutor of Evry.
Friday, October 22, in the afternoon, she had apparently asked a man for help to get the stroller off the train.
But she got back on board just before the doors closed, leaving the man on the dock with the child.
It was a RER C coming from Versailles Chantiers station (Yvelines), going to the Versailles Château Rive Gauche terminus.
His other children also placed
A medico-psychological expertise was commissioned.
The police were able to identify the mother following a call for witnesses massively relayed on social networks.
This resident of Yvelines then went to the Juvisy-sur-Orge police station on Monday evening, on summons from investigators, to be placed in police custody.
According to a source familiar with the matter, his statements “present inconsistencies”.
Because if she admitted to having left her child on the quay, she assures us "to have wanted to recover it".
However, it did not appear until 72 hours after the incident.
The 11-month-old baby, abandoned on the dock, is the subject of a provisional placement order in a nursery of the Social Assistance to Children (ASE), "this pending a judge of children takes action to set up educational monitoring, ”continues Caroline Nisand.
According to a source close to the investigation, the mis en cause would have several other children, also placed on court decisions.