When the dc conductivity of the material is not negligible, the low‐frequency part of the Cole‐Cole plot loses its distinctive shape. A complementary representation in terms of complex conductivity is proposed, in which a simple Debye mechanism again results in a semicircle. However, a nonzero value of dc conductivity does not cause this representation to lose its distinctive shape in the low‐frequency range. Examples of the utility of this representation are given.