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Richard J. Ashton
"The need for officers to be alert and readily visible to others when investigating collisions, directing traffic, or attending to disabled vehicles is indispensable to their safety and security. Officers must not focus so intently upon completing these duties that they unconsciously overlook the importance of being clearly recognizable to approaching motorists. They must be furnished with-and trained to use-retroreflective gear suitable to the duties they are undertaking, that is,"
