Comment on Weak localization in GaMnAs: evidence of impurity band transport by L. P. Rokhinson et. al. (Phys. Rev. B, 76, 161201 R; arXivCond-mat:0707.2416)

We suggest that negative magnetoresistance in small magnetic fields at temperatures lower than 3 K reported in the paper under discussion may be related to superconducting transition in In leads (with Tc = 3.4 K).