Helmi streams’ stars within 2.5 kpc are distributed in L_z − L_⊥ in two clumps: hiL (red) and loL (blue). The remainder of the stars in our halo sample in the 2.5 kpc volume are shown in black. Dashed lines show the selections used previously by K19 for the Helmi streams’ debris. Top panel: stars with radial velocities from Gaia, middle panel: stars in the sample. The average uncertainties of the Gaia radial velocity sample (RVS) stars (27.7% of the extended sample) and the LAMOST LRS stars (60% of the extended sample) are shown by the black error bars in the top and middle panel, respectively. The uncertainties of the remaining stars in the sample (12.3%) are similar to those of the RVS. Bottom panel: shows how the stars are distributed in L_z − E space.