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The first section discusses general principles of verified dismantlement . It respects diverse perspectives on , and approaches to , research and encourages rigorous innovative scholarship . Information included in the report covers such topics as how topics were selected , questionnaires designed , interviewers trained , samples designed , data collected , data cleaned , the data documentation , and how to properly analyze the data . Unlike back home where he has many friends , Nkane feels lonely here . In Remote Sensing for GIS Managers , author Stan Aronoff covers such topics as aerial photography , multispectral scanners , thermal infrared , radar , lidar , and sonar in ways that make sense for GIS professionals attempting to utilize this rich and increasingly affordable data source . While technology has created more challenges for law enforcement , it also requires federal agencies to coordinate efforts to work well together in identifying crimes , targeting suspects , investigating cases , and gathering evidence .