Pre-Paid Cell Phones

This issue is a bit more puzzling for me then the issue in my last post of whether or not i believe its acceptable to put tracking devises in humans. Pre-paid phones are used by many people as an inexpensive way of having a cell phone for people who can't afford expensive cell phone contracts. However they are also used by criminals so that these people can avoid having phone records. I truly believe this issue is somewhat similar to the issue are country in currently having with gun control. Basically the idea is that ya the government could "ban guns" but everyone  still knows no matter what the government says or does there are still gonna be people who find guns. I do understand at the same time that the government could control pre-paid cell phones but i honestly think it is a violation of our rights. If a person wants to buy a pre-paid phone to stay off the grid i dont blame them. It is quite alarming to me how easy it is to find information about any person you want through phone records or internet use and people should have the right to keep their lives private if they so chose. If this means that their are gonna be bad people that benefit from this then so be it. THe thing about criminals is that even if we change the game for them they will find a way to still do what they do. There were criminals 200 years ago and 200 years from now their will still be criminals. They will never be stopped simply because some people can't be anything else but a criminal. I would understand if government regulated pre-paid cell phone usage but if people think that this will stop crime or prevent it they are wrong. Criminals dont need pre paid phones or even weapons. I honestly have always believed that to be a criminal the most important thing you need is to be able to not care about anyone but yourself. Selfishness is something the government will never be able to control.