It means a 57% rise in arrests of those with outstanding warrants. Either the subject was already arrested, released, and didn't show up for court, or a warran

It means a 57% rise in arrests of those with outstanding warrants. Either the subject was already arrested, released, and didn't show up for court, or a warrant was issued for them by a judge based on a request by an officer and they can't locate the person to arrest them in the first place. Although many of these people were technically already in the system, the effect on the system is the same as a 57% rise in new arrests, since if a wanted person can't be located, they are not using a jail bed, their case is not taking up court docket space, and we aren't paying for their prosecution and in most cases their defense.