Private Investigator Derrick Marshall shows you how to utilize cheap and effective devices to conduct covert surveillance of your home, office, or any other area that you need to keep tabs on. The …
Springfield Missouri Law Enforcement Leaking Social Security Numbers
Derrick Marshall is a private investigator with 29 years of experience in the industry. As part of his work he frequently listens to his police scanner focusing on the Springfield and Greene County, …
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