A search warrant reveals new details about a domestic violence call that turned into a hazmat response in Brooklyn Park last week.Officers were first called to a home on the 6400 block of Zealand Avenue North on the night of Dec.

The search warrant states that police left the home and tested a drink she gave them, which was revealed to contain ricin, which is a highly toxic protein and considered a biological weapon.

The warrant was part of an ongoing domestic violence investigation, in which investigators suspected the man was in possession of a known hazardous substance.