Treasury Minister Michael Crowe says the government is monitoring companies who sponsor migrant workers through two immigration routes.
In the House of Keys this week, he faced questions from Ramsey MHK Juan McGuinness about the Global Business Mobility and Worker Migrant schemes.
Mr McGuinness wanted to know if there'd been an assessment of the immigration service's ability to check up on businesses.
In response, Mr Crowe said checks were put in place when the schemes were set up:
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