  We investigate the decays of the light stop in scenarios with the lightest
neutralino $\tilde{\chi}_1^0$ being the lightest supersymmetric particle,
including flavour-violating (FV) effects. We analyse the region where the
three-body decay $\tilde{t}_1\to W b \tilde{\chi}_1^0$ is kinematically allowed
and provide a proper description of the transition region between the
three-body decay and the four-body decay $\tilde{t}_1 \to\tilde{\chi}_1^0 b f
\bar{f}'$. The improved treatment has been implemented in the Fortran package
{\tt SUSY-HIT} and is used for the analysis of this region. A scan over the
parameter range including all relevant experimental constraints reveals that
the FV two-body decay into charm and $\tilde{\chi}_1^0$ can be as important as
the three-, respectively, four-body decays if not dominant and therefore should
be taken into account in order to complete the experimental searches for the
light stop.
