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Explosion on district line
Graeme Wall wrote:
On 16/09/2017 16:36, Recliner wrote: wrote: On Sat, 16 Sep 2017 09:20:32 -0500, Christopher A. Lee wrote: It does appear to be terrorism. Yes. And they've now made an arrest, in Dover. Don't these bombers realise that with all the surveillance videos, they're going to get caught? It's not guaranteed. Most criminals are caught due to having some form of previous interaction with the Police and establishing the end of a trail, eg a bank robbers trail may have started when he nicked some sweets from a corner shop as a 13 year old and became one to watch and whose habits and haunts become known. With a terrorist the trail may have been started by intelligence services observing their coming and goings with other known people doing suspicious activity or being seen at certain buildings. In both case if the perpetuator of a bank robbery or a terrorist act is doing it for absolutely the first time and is a lone wolf it becomes much harder, surveillance videos will not help if the person in the image cannot be recognized or are disguised unless they happen to turn up again elsewhere unguarded. There are experts at analyzing videos but as an example of how difficult it is to find someone with no previous look at the Jogger who pushed the woman into the path of a Bus recently, not even disguised, reasonable video from the street and the bus, loads of people about. They still have not identified anyone enough to bring charges Indeed, and they've wrongly arrested two innocent joggers so far. You'd think the jogger should be relatively easy to find, as his home location can be pinned down to quite a narrow area, Not necessarily in central London, could have jogged from his place of work and back (he recrossed the bridge shortly after the incident) and actually lives somewhere in the London commuter area, aka England. Yes, good point. and he must have been caught by many other cameras on his route. But who is going to put in the effort to look at them all, once he left the bridge he could have gone in any direction. Yes, but they can work outwards from the end of the bridge to trace his route. That area must have plenty of cameras. And the case is high profile enough that it may be worth the effort. However, if, within a few days of the incident, they didn't realise that they needed to do it, the footage from most of the cameras may not have been retained. |
#2
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Explosion on district line
On 16/09/2017 17:37, Recliner wrote:
Graeme Wall wrote: On 16/09/2017 16:36, Recliner wrote: wrote: On Sat, 16 Sep 2017 09:20:32 -0500, Christopher A. Lee wrote: It does appear to be terrorism. Yes. And they've now made an arrest, in Dover. Don't these bombers realise that with all the surveillance videos, they're going to get caught? It's not guaranteed. Most criminals are caught due to having some form of previous interaction with the Police and establishing the end of a trail, eg a bank robbers trail may have started when he nicked some sweets from a corner shop as a 13 year old and became one to watch and whose habits and haunts become known. With a terrorist the trail may have been started by intelligence services observing their coming and goings with other known people doing suspicious activity or being seen at certain buildings. In both case if the perpetuator of a bank robbery or a terrorist act is doing it for absolutely the first time and is a lone wolf it becomes much harder, surveillance videos will not help if the person in the image cannot be recognized or are disguised unless they happen to turn up again elsewhere unguarded. There are experts at analyzing videos but as an example of how difficult it is to find someone with no previous look at the Jogger who pushed the woman into the path of a Bus recently, not even disguised, reasonable video from the street and the bus, loads of people about. They still have not identified anyone enough to bring charges Indeed, and they've wrongly arrested two innocent joggers so far. You'd think the jogger should be relatively easy to find, as his home location can be pinned down to quite a narrow area, Not necessarily in central London, could have jogged from his place of work and back (he recrossed the bridge shortly after the incident) and actually lives somewhere in the London commuter area, aka England. Yes, good point. and he must have been caught by many other cameras on his route. But who is going to put in the effort to look at them all, once he left the bridge he could have gone in any direction. Yes, but they can work outwards from the end of the bridge to trace his route. That area must have plenty of cameras. And the case is high profile enough that it may be worth the effort. Lots of cameras at the north end of the bridge, possibly not so many at the south end. However, if, within a few days of the incident, they didn't realise that they needed to do it, the footage from most of the cameras may not have been retained. It took quite a while to be made public. Don't know how long footage is kept on modern CCTV but doubt it is more than week at the outside. -- Graeme Wall This account not read. |
#3
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Explosion on district line
Graeme Wall wrote:
On 16/09/2017 17:37, Recliner wrote: Graeme Wall wrote: On 16/09/2017 16:36, Recliner wrote: wrote: On Sat, 16 Sep 2017 09:20:32 -0500, Christopher A. Lee wrote: It does appear to be terrorism. Yes. And they've now made an arrest, in Dover. Don't these bombers realise that with all the surveillance videos, they're going to get caught? It's not guaranteed. Most criminals are caught due to having some form of previous interaction with the Police and establishing the end of a trail, eg a bank robbers trail may have started when he nicked some sweets from a corner shop as a 13 year old and became one to watch and whose habits and haunts become known. With a terrorist the trail may have been started by intelligence services observing their coming and goings with other known people doing suspicious activity or being seen at certain buildings. In both case if the perpetuator of a bank robbery or a terrorist act is doing it for absolutely the first time and is a lone wolf it becomes much harder, surveillance videos will not help if the person in the image cannot be recognized or are disguised unless they happen to turn up again elsewhere unguarded. There are experts at analyzing videos but as an example of how difficult it is to find someone with no previous look at the Jogger who pushed the woman into the path of a Bus recently, not even disguised, reasonable video from the street and the bus, loads of people about. They still have not identified anyone enough to bring charges Indeed, and they've wrongly arrested two innocent joggers so far. You'd think the jogger should be relatively easy to find, as his home location can be pinned down to quite a narrow area, Not necessarily in central London, could have jogged from his place of work and back (he recrossed the bridge shortly after the incident) and actually lives somewhere in the London commuter area, aka England. Yes, good point. and he must have been caught by many other cameras on his route. But who is going to put in the effort to look at them all, once he left the bridge he could have gone in any direction. Yes, but they can work outwards from the end of the bridge to trace his route. That area must have plenty of cameras. And the case is high profile enough that it may be worth the effort. Lots of cameras at the north end of the bridge, possibly not so many at the south end. However, if, within a few days of the incident, they didn't realise that they needed to do it, the footage from most of the cameras may not have been retained. It took quite a while to be made public. Don't know how long footage is kept on modern CCTV but doubt it is more than week at the outside. Yes, that may be the weak link. |
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