Commonwealth Integrity Commission: what is it and how is it different from Icac?

Labor, the Greens and crossbench senators including Jacqui Lambie, Rex Patrick and Stirling Griff have been highly critical of the CIC model

After years of the Coalition resisting the idea, in December 2018 the Morrison government announced it would create a commonwealth anti-corruption body to oversee law enforcement and public-sector integrity.

In November 2020 the government released a consultation draft bill, disappointing many both due to delay and the softness of its approach to corruption. So what is a federal integrity commission and do we need such a body?