Cadaver-detection dogs are trained to locate victim remains; however, their training is 5 challenging due to limited access to human remains. Animal analogues, such as pigs, are 6 typically used as alternative training aids. This project aimed to compare the visual 7 decomposition and volatile organic compound (VOC) profile of human and pig remains in an 8 Australian environment, to determine the suitability of pig remains as human odour 9 analogues for cadaver-detection dog training. Four human cadavers and four pig carcasses 10 were placed in an outdoor environment at the Australian Facility for Taphonomic 11 Experimental Research (AFTER) across two seasons. Decomposition was monitored 12 progressively in summer and winter. VOCs were collected onto sorbent tubes and analysed 13 using comprehensive two-dimensional gas chromatography-time-of-flight mass 14 spectrometry. Visual observations highlighted the differences in decomposition rates, with 15 pig remains progressing through all stages of decomposition, and human remains undergoing 16 differential decomposition and mummification. Chemical and statistical analysis highlighted 17 variations in the composition and abundance of VOCs over time between the odour profiles. 18 This study concluded that the visual decomposition and VOC profile of pig and human 19 remains was dissimilar. However, in cooler conditions the results from each species became 20 more comparable, especially during the early stages of decomposition.