If they don't work, they're not a safeguard for the accused, except in the case of police where they obviously wrongfully work as evidenced by the cases cited.

If they don't work, they're not a safeguard for the accused, except in the case of police where they obviously wrongfully work as evidenced by the cases cited. It seems to me, that in many cases, they're also a safeguard for a prosecutor who doesn't actually want to prosecute police as well as police who have committed crimes themselves. As far as regular citizens, they really have nothing to lose by eliminating grand juries with grand jury indictment rates being just shy of 100%.