She was formerly the Director of Public Health and Safety for the county of Wiltshire, England, where in 2018 she played a leading role in the response to the Novichok poisoning of Sergei and Yulia Skripal in Salisbury.

[2][3][4] She began her career as a health clinic receptionist in Coventry, then undertook a degree in social work with the Open University.

Her work on the incident, and the subsequent poisonings of Charlie Rowley and Dawn Sturgess (the latter fatal), resulted in her being profiled by The Guardian in January 2019.

[7] She was portrayed by Anne-Marie Duff (and was briefly seen, as herself, in a non speaking role[8]) in the three-part BBC Television drama The Salisbury Poisonings, screened in June 2020,[4] in preparation for which she was "interviewed extensively" by the programme makers.

[9] Lawrence Bowen, the series' executive producer, said:[9] When we met her and spoke to her, we felt that we'd sort of found a core point of view that sort of made sense of all these multiple points of view that we’d discovered in the research.Daszkiewicz was reported as saying that her character in the series is a composite of many different people who dealt with the aftermath.