 To proceed in an orderly manner, the Trade Division needed the approval of the Admiralty's Department of Naval Construction (DNC).Terrell and the chief of the Directorate of Miscellaneous Weapons Development (DMWD), Commander Charles Goodeve, met with representatives of DNC, who rejected plastic armour out of hand.DMWD performed a series of independent tests at the Royal Navy shore establishment HMS "Excellent", resulting in a glowing report