What I thing about police in Korea.

1. In fact, before I don\'t have any idea about police.

>>In fact, I did not have any idea about police before.

2. In my opinion, although I can\'t say they have power, but I think police is essential in Korea.

>>CORRECT
OR>>In my opinion, though I can\'t say that they are powerful, I think police is essential in Korea.

3. They usually look around at night along the dark way.
 >>CORRECT

OR>>They usually look around at night in the dark alleys.

4. Then, they can see some criminal scene or they can prevent any criminal.
 >>Then, they can see some criminal scene or they can prevent any criminals from doing crimes.

5. Also, there are lots of demonstration in Korea.
 >>CORRECT

OR>>Moreover, there are lots of assemblies in Korea.

6. At that time, police make the rules or safety line.
 >>At that time, the police creates boundary or safety line.

7. And they help people do not fight.
 >>And they prevent any commotion.

8. SO I think we need police.

>>So, I think we need police mainly for the safety of our society.

Good opinion.

Good sentences.

-T. Melody ^^