Hope and Gabbert review and distil the relevant research examining the mnemonic consequences associated with conversations within an eyewitness context. In particular, they focus on how co‐witnesses’ retellings of witnessed events impair the quantity and quality of information subsequently reported to law enforcement authorities. Notably, they also provide interventions (e.g., careful witness management and post incident procedures, use of warnings, early individual accounts, etc.) to mitigate these negative, well‐documented mnemonic effects.