Objective: To explore Australian psychologists’beliefs & practices in the detection of malingering& to establish a retrospective estimation of malingering prevalence. Method: One hundred psychologists (in psycho-legal practice) completed a survey adapted from Slick et al. (2003). Statistical analysis included non-parametric tests & discriminant function analysis. Results: Respondents retrospectively estimated a 10% prevalence of malingering in psycho-legal arena, but differed in endorsment of explanatory models. Conclusion:Estimation of malingering prevalence in Australia appears similar to that derived from North American studies. There is indication that exposure to psycho-legal assessments, beliefs about malingering,and use of detection strategies may predict psychologists’ retrospective estimation of malingering prevalence.