My views (08, Chien Pai Yu)

There are lots of advantages using the CCTV surveillance, but there are also disadvantages of using it.

The advantages is that the CCTV surveillance can record down what was happening at that time so you can trace back if you want/need to. The disadvantage of a CCTV surveillance is that a CCTV surveillance have limited sight/record range and there may be blind spots somewhere. To cover up the blind spots, a second CCTV surveillance will be installed to the area and thus increasing the usage of electricity. Increasing the usage of electricity cause you to have higher electricity bills and with more electricity used, global warming will speed up.

Even if you have CCTVs installed in homes and shops, the burglar/theif can just disguise himself/herself so that even if the CCTV recorded the incident, they will not know who did it and thus not allowing the police to close the case.

Another advantage is that the CCTV surveillance could sometimes scare the theif away as their actions can be recorded down and they have a chance of getting caught by the police thus it could reduce the crime rates in Singapore.