Video surveillance has become common place in many countries to reduce crime

In many cities, the use of video cameras in public places is being increased in order to reduce crime, but some people believe that these measures restrict our individual freedom.

Do the benefits of increased security outweigh the drawbacks?

It is true that video surveillance has become commonplace in many countries by the effort of the governments in term of reducing crime. While I understand that critics may see this as the personal violation, I wholeheartedly believe that there are more benefits than drawbacks.

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Hi, I have made a few suggestions for your writing.

It is true that video surveillance has become commonplace in many countries by{"through" seems better here} the effort of the governments in term[s ] of reducing crime. While I understand that critics may see this as the [a violation of] personal [privacy] violation , I wholeheartedly believe that there are more benefits than drawbacks.

On the one hand, the most important advantage of the video security system is to help police detect the suspect[s ] by monitoring one abnormal activities and prevent him from committing crime[s ] at the mean time. {"at the mean time" is wrong here - what exactly do you mean ?} Not just that, the emergence of video cameras at {"in" is better} public places, such as parking lot[s ] or supermarket[s ], implicitly spread a fear among people and hence they do not dare to make[ allow] themselves [to] become criminals. For example, most of the banks always have such [this] kind of technology installed in order to observe every single activit[y ] of [their] employees so that they will [be] less likely to] steal money. If a bank is robbed, the clips recorded by the cameras will be the effective data and the eviden[ce] for the investigation to [apprehend] seize the robber[s ].

On the other hand, the installation of video surveillance[ systems in] at public places is seen as an invasion of privacy because people are always under constant observation of the authorit[ies]. This could make a person fee[l ] that there is an eye watching him from the back{ "watching him from behind" or "watching him from behind his back"} and he is alike [treated like] a criminal. In fact, the utilization of video cameras is the purpose of government['s method] to restrict attacks from terrorists and to minimize the possibility that anybody become[s ] a victim or a hostage in that circumstances.

In conclusion, although people are opposing that video security system[s because they] violat[e ] their privac[y ], I would argue that it has more advantages than disadvantages.

the phrase " at the mean time" - I think it is the right time when the crime happens.

the phrase is "in the mean time" and it means "while you are waiting" For instance. "The only time I can take the TOEFL is in October, but in the mean time I will continue writing practice essays."