But the high-tech evidence against her was bunk. Routinely collected tower data can place amobile phone in a broad area, but it cannot pinpoint it. That would require a special three-tower triangulation, which cannot reveal past locations. It took a decade for Ms Roberts sguilty plea to be thrown out. On May 28th she left prison, her criminal record clean, afternearly 12 years in custody.
然而,指控罗伯茨的高科技证据是假的。常规情况来说,发射塔的数据可以收集手机在相当宽范围内的信号,但却无法对其定位。要定位则需由特殊的三塔 三角网,而这依旧无法显示你曾去过哪。罗伯茨小姐花了十年才洗脱罪名。拘留12年后,2014年5月28日,她出狱了,无犯罪记录。
Mobile-phone-tower location data is widely used in court, says Steven Jansen of the Associationof Prosecuting Attorneys in Washington, DC. Last year America s courts and law-enforcementagencies served 37,839 subpoenas, court orders, and search warrants for location data just toone phone company, AT T. This year s figure had already climbed to 30,886 by the endof June, the company says.
华盛顿原告律师协会史蒂芬詹森说,手机发射塔定位数据广泛用于法庭。去年,美国法院和执法部门向美国电话电报公司发出了37,839张传票、法院命令以及对其定位数据的搜查令。该公司称,截止到今年六月底,已经收到30,886张了。
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