Identify important features of the fourth, fifth, and sixth amendments.

The 4th Amendment states that people shall not be subject to unreasonable searches and seizures, and no unreasonable warrants shall be issued for unreasonable searches and seizures without a good reason.
The 5th Amendment states that everyone has a right to a trial by jury, and that nobody shall be tried for the same crime more than once.  It also prevents people from being forced to provide evidence that could be used to incriminate their own self. Finally, people's property or life or freedom cannot be taken away without due process of law, and private property that has been seized for public use will warrant  just compensation.
The 6th Amendment states that every person has a right to a speedy and public trial, as well as the right to be confronted with the witnesses against their self, a right to an attorney in their case, and a right to know the charges they are being tried for.
I highlighted the important parts.