A crash-ready, portable, item compartmentalization device for use in an emergency vehicle, the crash-ready, portable, item compartmentalization device comprising: a shell comprising: a first half shell and a second half shell hingedly coupled along a common side such that the first half shell and the second half shell can be positioned in a closed position to define an interior space and an open position in which the first half shell and the second half shell are disposed adjacent to and coplanar with one another; and at least one coupling device disposed within the interior space and selected from the group consisting of a removable means and magnetic pouch mount each of which comprises a latch mechanism; characterised in that: the crash-ready, portable, item compartmentalization device further comprises: at least one mount location coupled to an exterior wall of one of the first or second half shells, each mount location configured to secure the shell to a surface wall of an emergency vehicle; and at least one pouch removably coupled within the interior space through the at least one coupling device, the at least one pouch comprising: a container defining an interior compartment and having an opening for receiving items into the interior compartment; a flap hingedly coupled to the container and sized to cover the opening and at least a portion of an outer surface of the container; and a catch cooperative with at least one part of the latch mechanism. a shell comprising: a first half shell and a second half shell hingedly coupled along a common side such that the first half shell and the second half shell can be positioned in a closed position to define an interior space and an open position in which the first half shell and the second half shell are disposed adjacent to and coplanar with one another; and at least one coupling device disposed within the interior space and selected from the group consisting of a removable means and magnetic pouch mount each of which comprises a latch mechanism; a first half shell and a second half shell hingedly coupled along a common side such that the first half shell and the second half shell can be positioned in a closed position to define an interior space and an open position in which the first half shell and the second half shell are disposed adjacent to and coplanar with one another; and at least one coupling device disposed within the interior space and selected from the group consisting of a removable means and magnetic pouch mount each of which comprises a latch mechanism; the crash-ready, portable, item compartmentalization device further comprises: at least one mount location coupled to an exterior wall of one of the first or second half shells, each mount location configured to secure the shell to a surface wall of an emergency vehicle; and at least one pouch removably coupled within the interior space through the at least one coupling device, the at least one pouch comprising: a container defining an interior compartment and having an opening for receiving items into the interior compartment; a flap hingedly coupled to the container and sized to cover the opening and at least a portion of an outer surface of the container; and a catch cooperative with at least one part of the latch mechanism. at least one mount location coupled to an exterior wall of one of the first or second half shells, each mount location configured to secure the shell to a surface wall of an emergency vehicle; and at least one pouch removably coupled within the interior space through the at least one coupling device, the at least one pouch comprising: a container defining an interior compartment and having an opening for receiving items into the interior compartment; a flap hingedly coupled to the container and sized to cover the opening and at least a portion of an outer surface of the container; and a catch cooperative with at least one part of the latch mechanism. a container defining an interior compartment and having an opening for receiving items into the interior compartment; a flap hingedly coupled to the container and sized to cover the opening and at least a portion of an outer surface of the container; and a catch cooperative with at least one part of the latch mechanism.