For some decades now, human geography has sought to engage with the narratives of those deemed least powerful in society. This interest in the experiences of those who have traditionally been sidelined from political agendas has been part of move towards an increasingly critical approach to the social sciences, and ultimately as a way of using the academy as a tool for social justice. Researching the experiences of socially, politically and economically marginalised groups of people, is no longer a new endeavour. What is new, however, is the rapidity in the growth of interest of researchers seeking to engage with these populations, and the variety of the toolkit of methods, for research and analysis, available to support this engagement. Whilst this special edition seeks to draw out and explore a variety of novel approaches to research methods and practice, the particularly unique contribution presented by this publication is a candid exploration of the ethical challenges of engaging with populations identified as ‘vulnerable’ as expressed through the discussion of first-hand fieldwork experience.