Faculty of Public Health has over 3,300 members, all of whom are trained to find evidence-based solutions to complex problems. We strongly support AllTrials’ call for all trials to be reported and scientific data to be more fully in the public domain. Previous cases of suppressed evidence include the links between some SSRI antidepressants and suicide, as well as research into COX2 inhibitors and cardiac failure. These show us how vital it is that all research data is available in the public domain so that we can protect the public from harmful side effects of drugs. When making potentially life or death decisions about people’s health, our members need access to all the relevant data, not just the information people may choose to publish.