Investigative work is often complex, detail-oriented and executed over weeks or months. Without a system in place to prevent errors along the way, these factors that can contribute to mistakes in your final product and undermine your impact. To guard against errors, you'll need to take concrete steps to ensure accuracy during every step of the reporting process. We'll show you our tried and true methods — including document corroboration, source vetting, script footnoting and final accuracy checks — for inoculating stories from errors. And because mistakes do happen, we'll detail what we've learned from our own missteps and discuss how to respond responsibly and with transparency.