BfV Vice President Thomas Haldenwang has told the internal affairs committee of the Bundestag that the agency was considering such move due to possible anti-constitutional trends within the party, the Spiegel reported.
According to the publication, 13 of the 16 German federal states sent extensive materials to the counterintelligence service regarding "possible anti-constitutional tendencies in AfD," most of the documents contained two-digit or even three-digit number of pages.
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In early September, media reported that BfV office in the federal state of Thuringia will launch a systematic check of the activities of the local branch of the AfD party for compliance with the basic law of Germany.