What is role of parliamentary watchdog ICGS set up in response to #MeToo?

Independent Complaints and Grievance Scheme was set up three years ago to process official HR complaints

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Before this week, 56 MPs - including two shadow cabinet ministers - had reportedly been referred to the Independent Complaints and Grievance Scheme (ICGS), a parliamentary watchdog established more than three years ago.

The profile of the ICGS has been heightened after news that a Conservative MP, who allegedly watched pornography on his phone in the House of Commons, has been reported to it.