A judge in CA could just do that, or even not charge any bail. They have a lot of discretion. However, some judges may decline to offer low (or no) bail. That's

A judge in CA could just do that, or even not charge any bail. They have a lot of discretion. However, some judges may decline to offer low (or no) bail. That's where the "no cash bail" elected officials come in. Some DAs, for example, make it policy not to ask for cash bail (and obviously the defense attorneys or defendants will also ask for no cash bail).