The bitter Emma Husar row has spread, with Ms Husar accusing a state Labor parliamentary colleague - understood to be shadow minister Prue Car - of deliberately "isolating" her and excluding her from media events within her own electorate.

Ms Husar, the federal member for the marginal seat of Lindsay, details the fresh complaints in a supplementary response to barrister John Whelan, who is investigating a raft of allegations against Ms Husar lodged by former staff.

Labor leader Bill Shorten visits Penrith with Emma Husar (left) and Prue Car (right) in March 2015. Credit:Michele Mossop

Ms Husar also complains she has been the target of threats of "physical violence" since the original allegations about her conduct were leaked to Buzzfeed late last month, and says she has reported the threats to the Australian Federal Police.

She has rejected the vast majority of the allegations, instead pointing the finger at what she describes as "dysfunctional local politics and sub-factions" operating "under the radar" within her sprawling western Sydney electorate.