Investigation service exists everywhere on the globe. It plays a more and more important role in foreign investment, international trade and other big projects worldwide. All kinds of investigation services are catered to individuals and companies worldwide, covering: Due diligence; Business fraud investigation; Assets tracing; Fulfillment abilities investigation; Bankruptcy and background investigation; Litigationinvestigation; Criminal and civil records investigation; Intelligence investigation; Pre-employment investigation; Marital investigation; Phone number checking; Debt collection; Civil affair Investigation; Address investigation etc.