Position above the Galactic plane (middle panels) and radial velocity (bottom panels) versus metallicity for the observations (in green for the Sculptor line-of-sight on the left-hand side and red for the Sextans line-of-sight on the right-hand side). The predictions of the Besançon model are shown in grey-scale. The horizontal dashed lines indicate the range of radial velocities appropriate for member stars of the respective dSph. The panels at the very top show the metallicity distributions of the foreground stars in these two lines-of-sight and the Kolmogorov-Smirnov probability of not rejecting the null hypothesis.