How do police arrest Facebook users?

[meoshewu]

Yes they can. It depends on how severe the crime is. They can find you if they have a good cyber team. They can do this by locating the IP address attached to your account/profile/device. Every device uses one to connect to the internet. This is how your internet provider connects you and others in your area to the web via modems. So your modem has a IP address as well. Then your modem also has what's called a MAC address. This is the FCC (gov't issued ) address that is dedicated to the actual hardware that you were issued or using, Like you iphone, ipad,pc etc. However, most importantly the IP address dictates the geographical area in which the hardware is physically at. Then the MAC address will tell them what system you used - iphone, ipad etc.

Be careful, cyber crime is a crime. NOT A JOKE.