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>London has ~700k cameras A fact that often scurries across my mind when I read about some crime caught in 4k (especially home security cams) for which the pol

>London has ~700k cameras A fact that often scurries across my mind when I read about some crime caught in 4k (especially home security cams) for which the police are unable to find the culprits. Are all those cameras actually on?

djbebs 5y ago
They are but if they use them all the time people won't be able to put them out of their mind and ignore them. So they only use them when it's politically convenient
raxxorrax 5y ago
You think all these cameras would have a positive effect on the crime index. London is just average compared to other European cities, so you might just want to skip spending billions on surveillance in the first place. https://www.numbeo.com/crime/region_rankings_current.jsp?region=150 https://www.numbeo.com/crime/region_rankings_current.jsp?reg...
- Cycl0ps 5y ago
  >Is this much less accurate than governmental statistics? In some countries, governments have a detailed statistics based on a number of reported crimes per capita. Those surveys are particular good in comparing crime between two cities in that country, but are not so good in cross country comparison for the following reasons: By its own admission this isn't a good metric
  - raxxorrax 5y ago
    True, it depends on individual methods for data collection. Still, there should be some evidence for the effectiveness of video surveillance. https://en.wikipedia.org/wiki/Crime_in_London https://en.wikipedia.org/wiki/Crime_in_London doesn't really reflect a significant influence. It is falling slightly, just analogous to almost any other European city or capital.
spzb 5y ago
The recent murder of Sarah Everard was solved largely because of CCTV images taken by, if I remember rightly, a bus and a Ring doorbell. Police were able to retrace her movements using those images as reference points and then working backwards to her last known location and forwards to when she encountered her killer (who turned out to be an off-duty police officer). [1] I think a lot of the time it comes down to resources. For a high profile murder they're prepared to put in the effort. For more minor offences, it's not worth it (to the police, not the same as to the victim) [1] https://www.theguardian.com/uk-news/2021/jul/09/sarah-everard-wayne-couzens-white-vauxhall-astra-police https://www.theguardian.com/uk-news/2021/jul/09/sarah-everar...

djbebs 5y ago

They are but if they use them all the time people won't be able to put them out of their mind and ignore them. So they only use them when it's politically convenient

raxxorrax 5y ago

You think all these cameras would have a positive effect on the crime index. London is just average compared to other European cities, so you might just want to skip spending billions on surveillance in the first place. https://www.numbeo.com/crime/region_rankings_current.jsp?region=150 https://www.numbeo.com/crime/region_rankings_current.jsp?reg...

Cycl0ps 5y ago
>Is this much less accurate than governmental statistics? In some countries, governments have a detailed statistics based on a number of reported crimes per capita. Those surveys are particular good in comparing crime between two cities in that country, but are not so good in cross country comparison for the following reasons: By its own admission this isn't a good metric
- raxxorrax 5y ago
  True, it depends on individual methods for data collection. Still, there should be some evidence for the effectiveness of video surveillance. https://en.wikipedia.org/wiki/Crime_in_London https://en.wikipedia.org/wiki/Crime_in_London doesn't really reflect a significant influence. It is falling slightly, just analogous to almost any other European city or capital.

spzb 5y ago

The recent murder of Sarah Everard was solved largely because of CCTV images taken by, if I remember rightly, a bus and a Ring doorbell. Police were able to retrace her movements using those images as reference points and then working backwards to her last known location and forwards to when she encountered her killer (who turned out to be an off-duty police officer). [1] I think a lot of the time it comes down to resources. For a high profile murder they're prepared to put in the effort. For more minor offences, it's not worth it (to the police, not the same as to the victim) [1] https://www.theguardian.com/uk-news/2021/jul/09/sarah-everard-wayne-couzens-white-vauxhall-astra-police https://www.theguardian.com/uk-news/2021/jul/09/sarah-everar...