  One question is whether (PI) has implications for criminal procedure that extend beyond the criminal trial. On one view, (PI) just is a norm that governs the burden and standard of proof at trial. On another, (PI) is something more expansive: it is a norm that tells criminal justice officials—and, perhaps, the rest of us too—how to interact with others, including those suspected of crime (Stewart 2014, Duff 2013b). That norm of course has implications for the moment of trial. But its implications extend both backwards and forwards from that point in time. They extend backwards to decisions about whether to arrest, prosecute, or detain those suspected of criminality (Ashworth 2006, 249; Duff 2013b, 180–185; Stewart 2014, 414). And they extend forwards to decisions both about how much to punish (Tomlin 2014a), and about the appropriate collateral consequences of conviction and punishment (Duff 2013b, 185–192).