Kerala Love Jihad Hearing underway in Supreme Court; NIA submits probe report

Kerala Love Jihad Hearing is underway in Supreme Court. NIA has submitted its probe report and has said that the investigation into the case is almost over, and that the agency had taken over the probe following Court's order. Meanwhile, Supreme Court has said that there is no intereference in NIA probe but how can the agency probe the matter of marriage between two people?