The Liberals' Chiaka Barry says she was likely at the centre of a claimed threat of physical violence former ACT opposition leader Leanne Castley cited when she sensationally quit the party.
Ms Castley said opposition members' comments since her resignation demonstrated the poor culture she had walked away from and she had now made a formal complaint under the members' code of conduct.
Ms Barry said she had told Ms Castley "if you come at me the way you did, I would have no choice but to come back at you" at a meeting following a tense interaction in the Legislative Assembly chamber last month.