Methods and kits for rendering inert contaminating nucleic acids are provided. According to the invention, the device can distinguish whether operation of the sensor is actually carried out by a human hand, or by erroneous objects, whereby, in an initial adjustment phase, the device records at least one set of data for each signal and stores the same in a memory, which occur at least some defined timepoints during the signal time course of the corresponding sensor. In addition, a preference factor can be applied to at least the equalized on-time samples to generate preferred equalized on-time samples, which are combined with the equalized late samples to generate a set of equalized samples for decoding. The full-size arrangement includes a full-size writing instrument that is convertible to the quick-use arrangement. The outlets for elastics are formed in the respective guide grooves and each of the outlets for a web lies between each pair of the adjacent outlets for elastics as viewed in the cross direction CD. The desired dispersion values are obtained when light resides substantially in a single higher order mode of the fiber, typically the LP02 mode.