For nearly a decade, Pakistan�s Federal Board of Revenue (FBR) has been struggling toaward a contractfor a track and trace system to crack down on illicit tobacco products in the country. After legal challenges forced the cancellation of a decision made under suspicious circumstances last year...
a decoding- transformer' having the- energliation of its-primary-controlled by operation ofsaid'off-code tracEkrelay; and a code-responsiverelay connected' to the secondary of said'transformer, and temporarily energized by the impulse voltages'produced'bysaid transformeras-said offcode track'relay...