Abstract: A hand held apparatus and method for detecting paper currency, within a package, where the paper currency has a ferromagnetic component. The apparatus includes a DC magnetic field source for inducing a DC de-magnetization field in any ferromagnetic paper currency that may be present within a package, and DC magnetic sensors for detecting certain characteristic patterns in the DC “de-mag” field induced by the DC magnetic field source. These certain characteristic field patterns are indicative of paper currency arranged in commonly found arrangements.

Abstract: A hand held, or at least hand directed, apparatus and method for detecting contraband, such as paper currency, within a container, where the contraband has a ferromagnetic component. The apparatus includes a DC magnetic field source for inducing a de-magnetization field in any ferromagnetic contraband that may be present within a container, and induction coil sensors for detecting certain characteristic patterns in the “de-mag” field induced by the DC magnetic field source. These certain characteristic field patterns are indicative of contraband arranged in commonly found arrangements of such types of contraband.

Abstract: A table top mounted apparatus and method for detecting contraband, such as paper currency, within a container, where the contraband has a ferromagnetic component. The apparatus includes a DC magnetic field source for inducing a de-magnetization field in any ferromagnetic contraband that may be present within a container, and magnetic sensors for detecting certain characteristic patterns in the “de-mag” field induced by the DC magnetic field source. These certain characteristic field patterns are indicative of contraband arranged in commonly found arrangements of such types of contraband.