On Friday Satakunta District Court ordered that a 49-year-old woman be remanded in custody, the fourth person suspected of involvement in a child abduction case that has grown in scope this week.
Police in the western city of Pori believe a child was abducted on Sunday and then taken out of the country without a guardian's consent.
Authorities have not disclosed to which country the child was taken, nor what relationship the suspects may share. Police have also not disclosed how old the child is.
On Tuesday a 63-year-old man was ordered to be remanded in custody in absentia, under suspicion of child abduction and aggravated deprivation of liberty. That suspect is a physician, according to the National Supervisory Authority for Health and Welfare (Valvira).
His spouse, a 54-year-old woman, was detained on Thursday, however her detainment order was based on a "reasonable suspicion," which means that authorities need to present additional evidence to support the criminal suspicions or she will be released.
A third suspect had been detained by police earlier in the week, but investigating officers declined to provide any personal information about this person, citing the need to protect the identity of the suspected abduction victim.
A fourth individual was also detained on Thursday, but police have not yet said what crimes the person is suspected of committing.
Child abductions, affecting kids under the age of 16, are commonly carried out by a parent, foster parent, guardian or other person who is close to the child, such as grandparents, for example. In some cases abducted children are taken abroad without plans to return them, according to news service STT.
Child abduction convictions carry penalties ranging from fines to sentences of up to two years in prison.
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