Which of the following is a type of warrantless search or seizure?

A. Search incident to arrest
B. Investigative detention
C. Consensual encounter
D. Looking for evidence in an open field

im confused between A and D

http://en.wikipedia.org/wiki/Searches_incident_to_a_lawful_arrest

To determine which of the options, A or D, is a type of warrantless search or seizure, we need to understand what these terms mean.

Option A: Search incident to arrest refers to the legal authority for a search conducted by law enforcement officers without a warrant, but rather as a result of an arrest. This type of search allows officers to search the person being arrested and the immediate area within their reach for weapons or potential evidence that could be destroyed.

Option D: Looking for evidence in an open field refers to conducting a search in an area, typically an open outdoor space, where there is no reasonable expectation of privacy. This means that law enforcement officers can search an open field without obtaining a warrant.

Based on this understanding, both options A and D can be classified as warrantless searches or seizures. Option A refers to a search incident to an arrest, which can be conducted without a warrant, while option D describes searching in an open field, which also does not require a warrant.

Therefore, both options A and D are types of warrantless searches or seizures.