This may be another major screwup on the State's part.
The issue is the admissibility of digital evidence and that GPS based data will likely ultimately be worthless in a court of law base on the the first time a Daubert or Frye Test is applied by a relying Court to the GPS system itself.
What these two tests are, are the basic constraints for admitting scientific testimony which is what GPS Data is... and unsecured "L1 Only" GPS fails both of them in spades.
As to why this is true... an idiot could spoof a GPS system in their sleep. It's that easy, but more importantly, the operators of the GPS system all have clear warnings about reliance on unauthenticated GPS (i.e. Civilian "L1" GPS) services for anything that doenst have human oversight... i.e. That GPS is suitable for navigating a SUV or a super tanker for that matter, but in uses where court admissible evidence is created, GPS is worthless.
Further, timestamps from GPS based devices actually violate 15 USC 271 and 15 USC 272 which are VERY clear on which Federal Agencies can distribute Time Data... and guess what, the USNO is not one of them according to the US Law.
I am not saying this is right - but it is the law by my reading of them statutes.
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This may be another major screwup on the State's part.
The issue is the admissibility of digital evidence and that GPS based data will likely ultimately be worthless in a court of law base on the the first time a Daubert or Frye Test is applied by a relying Court to the GPS system itself.
What these two tests are, are the basic constraints for admitting scientific testimony which is what GPS Data is... and unsecured "L1 Only" GPS fails both of them in spades.
As to why this is true... an idiot could spoof a GPS system in their sleep. It's that easy, but more importantly, the operators of the GPS system all have clear warnings about reliance on unauthenticated GPS (i.e. Civilian "L1" GPS) services for anything that doenst have human oversight... i.e. That GPS is suitable for navigating a SUV or a super tanker for that matter, but in uses where court admissible evidence is created, GPS is worthless.
Further, timestamps from GPS based devices actually violate 15 USC 271 and 15 USC 272 which are VERY clear on which Federal Agencies can distribute Time Data... and guess what, the USNO is not one of them according to the US Law.
I am not saying this is right - but it is the law by my reading of them statutes.
Todd Glassey