Pennsolveania
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Commonly used on Level 3 sex offenders, for at least the first 30 days after they are released from custody.
Previously, only offenders considered most at risk to reoffend among Level 3 sex offenders already the group considered most likely to reoffend wore the devices.
The bracelet-wearing sex offenders still represent just a fraction of the criminal population. They are meant to modify offenders behavior by making them more concerned about getting caught but they wont prevent anybody from doing anything.
It improves community safety, Pierce said. It doesnt ensure it.(Paraphrased)
http://www.columbian.com/article/20081002/NEWS02/810019916
The GPS technology is not foolproof.
There are GPS devices that send information once a day. Florida switched to the active GPS devices, which instantly alert authorities to any violations.
But there are problems with the way the technology is used and monitored. False alarms number in the thousands in some jurisdictions, straining manpower and casting doubt on the viability of GPS as a tracking tool for high-profile felons.
In Arizona, a 2007 legislative study found more than 35,000 false alerts by 140 subjects wearing the GPS-monitoring devices.
Policymakers should understand that having a GPS device on subjects doesn't mean they're monitored all the time. "A lot of people think if you're on GPS somebody is sitting at a computer and they know your whereabouts all the time," Carbone said. "They're not aware of the influence of weather and other interferences with the system.
Additionally the offender is counted on to charge the device's batteries and make sure he's wearing it on his belt and not in his pocket. "These are folks who we've already identified as having trouble following rules or schedules, they may intentionally fail, because by not charging it, they know they're not being tracked. If I don't charge this thing for two hours, there's no evidence of where I've been.'"
http://www.govtech.com/gt/596099?topic=117699
There are many low cost and portable devices to disrupt GPS reception.
Law enforcement agencies typically keep track of house arrest prisoners with simplest GPS based tracking bracelets.
Officials say there have been a few kinks but won't discuss many of them for security reasons. The GPS signal, like a cell phone's, can be interfered with when the offender passes under a bridge, enters a windowless or steel-framed structure or covers the device in bedsheets or aluminum foil. "They're trying to test us," Suffolk probation director John Desmond said. "I don't want to give them any more ideas."
http://www.geocities.com/eoped/gps-001.html
Previously, only offenders considered most at risk to reoffend among Level 3 sex offenders already the group considered most likely to reoffend wore the devices.
The bracelet-wearing sex offenders still represent just a fraction of the criminal population. They are meant to modify offenders behavior by making them more concerned about getting caught but they wont prevent anybody from doing anything.
It improves community safety, Pierce said. It doesnt ensure it.(Paraphrased)
http://www.columbian.com/article/20081002/NEWS02/810019916
The GPS technology is not foolproof.
There are GPS devices that send information once a day. Florida switched to the active GPS devices, which instantly alert authorities to any violations.
But there are problems with the way the technology is used and monitored. False alarms number in the thousands in some jurisdictions, straining manpower and casting doubt on the viability of GPS as a tracking tool for high-profile felons.
In Arizona, a 2007 legislative study found more than 35,000 false alerts by 140 subjects wearing the GPS-monitoring devices.
Policymakers should understand that having a GPS device on subjects doesn't mean they're monitored all the time. "A lot of people think if you're on GPS somebody is sitting at a computer and they know your whereabouts all the time," Carbone said. "They're not aware of the influence of weather and other interferences with the system.
Additionally the offender is counted on to charge the device's batteries and make sure he's wearing it on his belt and not in his pocket. "These are folks who we've already identified as having trouble following rules or schedules, they may intentionally fail, because by not charging it, they know they're not being tracked. If I don't charge this thing for two hours, there's no evidence of where I've been.'"
http://www.govtech.com/gt/596099?topic=117699
There are many low cost and portable devices to disrupt GPS reception.
Law enforcement agencies typically keep track of house arrest prisoners with simplest GPS based tracking bracelets.
Officials say there have been a few kinks but won't discuss many of them for security reasons. The GPS signal, like a cell phone's, can be interfered with when the offender passes under a bridge, enters a windowless or steel-framed structure or covers the device in bedsheets or aluminum foil. "They're trying to test us," Suffolk probation director John Desmond said. "I don't want to give them any more ideas."
http://www.geocities.com/eoped/gps-001.html