  We investigate the implications of $R$-Parity violation (RPV) for quark
flavour violation both by constraining the sneutrino masses to be positive and
by studying the processes $b\to s\gamma$ and $K^0-\bar K^0$ mixing. In the
latter there are two major contributions, one from ``direct'' one loop diagrams
involving RPV couplings, and one from the ``indirect'' contributions generated
by the renormalisation group. We compare the effects and discuss the
implications of our results.
