Explain what a buffer colonyb is

A buffer colony - like Georgia, for example - was founded because colonists wanted a "buffer zone" (any area that serves the purpose of keeping two or more other areas distant from one another.) between the British colonies and other settlements. Georgia, specifically, was founded to protect South Carolina against attack by the Spanish, the French and the Indians.  

Explanation:

the fourth amendment protects:

"the right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized."  

so this would mean the denial to search and seizure without warrant or permission.