Tucumseh:
SQEP requirements are littered throughout the RA 1000 regulations, depending on post, some more specific posts have them listed in a table, for example RA1003(1) & 1022(1) also RA 4945 has requirements for post but not utilising the descriptor SQEP:
https://www.gov.uk/government/public...egulations-gen
https://www.gov.uk/government/upload...45_Issue_2.pdf