On any given day, approximately 514,000 people are held in local jails across the United States. Though defendants are presumed innocent until proven guilty, more than 80% of the jail population are awaiting trial and have yet to be convicted of a crime. Defendants accused of particularly serious violent crimes or who pose a credible threat to public safety may be detained in jail while awaiting trial. However, most defendants are entitled to pretrial release. Judges may impose conditions on a defendant’s release, such as electronic monitoring or supervision through a pretrial services agency.
— Read on reason.org/policy-brief/the-effects-of-cash-bail-on-crime-and-court-appearances/