The J&K police is acting swiftly to identify the perpetrators and initiate strong legal action to put them out of circulation, the J&K DGP Dilbag Singh. As many as 30 persons, who were allegedly threatening people not to open shops or market apple produce, have been arrested. Over 3,000 of the 4,000 detainees in J&K since August 5 have been released, he added.