Abstract: A striker plate assembly and security hinge system for use between a door and a door casing is provided, comprising a striker plate having a face plate and a housing adapted to receive an extendible member from the door, and a reinforcing member comprising a first flange having an opening adapted to matably and interlockingly engage said housing of the striker plate, and a second flange having a first hole pattern. The system also includes at least two security hinge assemblies connected between the door, the door casing and the interior wall structure, wherein each security hinge assembly comprises first and second hinging plates operatively connected by a pin, wherein the first hinging plate is attached to the door and includes a backstop plate, and wherein the second hinging plate includes an anchoring plate attached to the interior wall structure. Optionally, a routing guide may be employed which assists in the formation of a slot for the security hinges through the door casing.