The Government Says

Code of practice for labour market enforcement undertakings and orders

Code of practice for labour market enforcement undertakings and orders
Local copy of code-of-practice-for-fair-work-agency-labour-market-enforcement-undertakings-and-orders.pdf

https://www.gov.uk/government/publications/code-of-practice-for-labour-market-enforcement-undertakings-and-orders

seen at 14:43, 7 April in Policy papers and consultations.