Professor Wheatcroft is a national and internationally recognised Chartered Psychologist and Registered Practitioner Psychologist (Forensic) who has significant journal, conference and other text publications. Jacqueline has given evidence in court as an expert witness and been invited to venues across the world to deliver keynote addresses about her research which focuses on the enhancement of information, intelligence and evidence. Jacqueline is also a Fellow of the British Psychological Society (BPS) which represents the highest recognition of significant contribution made to the advancement or communication of psychological knowledge or practice by research, teaching and publications.

Professor Wheatcroft has research interests which surround the enhancement of information, intelligence and evidence in forensic contexts. Jacqueline's focus is on the effects of process, procedure and questioning techniques on the information people give in judicial contexts and the impacts on those attending court to give evidence, including those who are vulnerable. Jacqueline has conducted a range of funded projects from a variety of sources and is passionate about working across disciplines. More recently, her work and contributions have broken new ground in respect of cross-examination techniques such that Jacqueline has contributed to the 20 Principles of Questioning which guide the ways in which children and vulnerable witnesses are examined in the court process. The principles are also used by the Ministry of Justice in training of Registered Intermediaries. Further, Jacqueline has pioneered the development of a witness interview protocol (LIP) which has been used in investigations (including children), post incident management, and by United Nations experts.

Professor Wheatcroft's vision is that all witnesses and interviewees can be supported to give of their best evidence, in investigations, interviews and judicial settings worldwide.