Uncertainty, trust and model accuracy can be used to disregard evidence, justify inaction or manipulate decisions. There is a broad range of approaches to handling uncertainty, including model validation, uncertainty quantification, robust decision making and participatory model building, as well as ad hoc solutions that have not yet been formalised. This session welcomes the full range of submissions, ranging from methodological contributions to case studies involving contested models or decisions. We ask that each submission include a statement about possible implications for resolving contested decisions. Contributions focussed on model development might prefer to submit to the session on "Model identifiability and uncertainty methods". We hope to encourage developers and users of methods to think about how their insights will be used in practice, and for practitioners to think about transferable practices that could be applied elsewhere.