but in golsby's case, boggs says ohio's department of rehabilitation and correction, or drc, told herhim, but they didn't have any exclusionary zones affiliated with that monitor, they didn't have any curfews affiliated with that monitor. >> so, no geographic restrictions and no -- no curfew programmed into it. what is the point of it? >> exactly. >> is part of it supposed to be a deterrent of some kind? >> i think drc believed that placing a gps monitor on him would curtail his criminal activity but it didn't. >> the reality is nobody is monitoring him electronically, not in real time. >> martin horn, the former commissioner of probation for new york city and a critic of gps monitors is not surprised by any of this. is this a false sense of security? >> oh, absolutely. it is not an electronic tether. all it is, is something that, after the fact, will either tell me where you were or where you weren't. and even then, it is not foolproof. >> it's a great monday-morning quarterback tool. >> yeah, and it's, also, i think, a tremendous liability for the government agencies that use them.