An incoming request consists of two parts, a command dataset, containing elements in the 0000 group, and an identifier containing the details. This property equates to the command dataset, and the Request property equates to the identifier. Whilst this property is available for all incoming requests on a DicomConnection, incoming composite operations are interpreted internally by DicomObjects, and presented via convenient properties such as Operation and Root. The main use for this property is therefore for incoming normalised operations (via NormalisedReceived) for which it provides the only access to the CommandID (0000,0100), and the requested and affected Instance UIDs and SOP Classes