A method, apparatus and system for secure forensic investigation of a target machine by a client machine over a communications network. A heater wire of a diameter less than the width of the smallest permissible indicia of a barcode is embedded between the first and second light transmitting surfaces. This produces increased uptake of galactose and increased ethanol production when the organism is grown on a galactose containing medium. The facsimile apparatus detects a change of a hook state of the telephone. The apparatus may also include a NOx-adsorber fluidly coupled to the catalytic component with a second downpipe segment.