Some people, with the help of nongovernmental associations, have gained permission from authorities dig up graves to check for bones of infants thought to have been taken away from their mothers without their consent.
The cases of disappeared infants stretched from about 1950 to 1990, beginning during the dictatorship of Gen. Francisco Franco and continuing well after his death, in 1975, and into Spain's return to democracy.
The practice may have begun, experts say, as political retaliation for leftist families who opposed Franco's dictatorship, and then turned into a criminal network in which doctors and nurses were paid by traffickers to help steal infants from their mothers.
Several investigations into cases have found that the mothers were told that their babies had died during or shortly after delivery, and that the infants had been buried while the mothers recovered in the hospital.
Spanish judges have received hundreds of charges that infants were abducted and sold for adoption.
Last year, a court found that Eduardo Vela, a former gynaecologist who was accused by Madrigal of abducting her from a Madrid hospital in 1969, had played a role in the case. But because the charges against him fell under a 10-year statute of limitations, he was not convicted.
In many of the lawsuits filed by people who believe they were abducted as infants, Spanish judges have refused to even start a trial because the charges are covered by the statute of limitations. Some lawyers working on the cases have pushed for a special statute of limitations to be adopted, given the scale of the scandal.
Antonio Barroso, president of Anadir, an association formed to represent people searching for missing children or parents, said Madrigal was still a victim of a serious crime — illegal adoption — facilitated by a doctor who forged documents. He said each case should be analyzed separately, and Madrigal's situation "tells us nothing about the others" except that Spain had also experienced "a giant scam" involving babies.
On Thursday, Madrigal said her long DNA search had finally allowed her to "complete the puzzle that is my life" by working out the identity of her biological family. She said her biological mother died in 2013, at 73, and she had met her four biological siblings.
After Madrigal's announcement, the public prosecutor's office announced that her case would no longer be considered a theft. Madrigal, who had sought to appeal the decision not to convict the gynaecologist, said that although he should no longer be punished on that charge, he had treated her "like a puppy" by failing to register her with her mother at birth.
Written by: Raphael Minder
© 2019 THE NEW YORK TIMES