Norms urging prosecutors to seek justice by playing a quasi-judicial role and striving for fairness to defendants are often assumed to have deep historical roots. Yet, in fact, such a conception of the prosecutor\u27s role is relatively new. Based on archival research on the papers of the New York County District Attorney\u27s Office, The Discretionary Power of \u27Public\u27 Prosecutors in Historical Perspective explores the meaning of the word public as it applied to prosecutors in the nineteenth century. This article shows that, in the early days of public prosecution, district attorneys were expected to maximize convictions and leave defendants\u27 rights for defense counsel to champion. However, rather than bowing to pressure to pu...