Expert answer:500–750 words; Excel crime scene mapping

Expert answer:You are the crime scene sketch artist, and you have another officer with you who is mapping. There is a difference between mapping and sketching. There are several methods of mapping that are used for interior and exterior crime scenes.Four methods of mapping include the following:
•Baseline mapping
•Rectangular coordinate mapping
•Triangulation mapping
•Polar/grid coordinate mapping
The first 3 can be used in both interior and exterior scenes, but only the polar/grid mapping technique is used exclusively for exterior mapping.
Assignment Guidelines
•In 500–750 words, give an explanation of how the first 3 types of mapping listed above would be applied to the following crime scene. ◦Officer McBetts has to map the following crime scene: ◾A bedroom is 10 by 12 feet (12 feet north and south, 10 feet east and west). A dresser is in the middle of the north wall.
◾The bed is in the middle of the west wall, facing east.
◾The television is on the east wall. The door to the bedroom is on the east wall ( the TV is southeast, and the door is northeast, with 2 feet between them. The entry door is 2 feet from the northeast corner.
◾A chair is located on the south wall next to the picture window. The chair is south east and 3 foot from the southeast corner.
◦Consider the accuracy of the different interior-mapping techniques.
◦How much time is involved in completing the process for each technique? Explain.
•Next, choose 1 of the 3 interior-mapping methods, and make a map using the cell grids in MS Excel. ◦Put a border around the main room and small borders where each individual object is located (3 rectangular cells equal one square).
◦Note: Copying and pasting the Excel document into a MS Word document does not count as one page of the writing section.
•Be sure to reference all sources using APA style.

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