Spanish police express concerns that Islamist extremist actors could exploit an immigration regularization initiative approved by Prime Minister Pedro Sánchez. The initiative, approved last month, is reported to involve the regularization of roughly 500,000 undocumented people.

According to the reporting, police worry that individuals seeking or obtaining status could use fake identities or documents to enter or remain in Spain, potentially enabling criminal activity or posing security risks. The concerns focus on whether extremist networks might take advantage of the administrative process associated with regularization.

The articles provided do not include specific confirmed cases or detailed evidence in the excerpts, but they describe the apprehension within law-enforcement circles. Overall, the coverage frames the regularization plan as a significant policy change that requires robust screening and verification to reduce the risk of fraud. The reporting does not attribute any particular incident to a specific group in the available text.