Top: hole, cavity 穴 (It is covered 宀 and a narrowing path 八 leads into the cave), below: rule, regulation 规 (The husband 夫 looks 见/見 after the regulations)
Mnemonic
(The penetrant) The holes in the regulations need to be watched on.
The big 大 person with the extra 一 caring arms. (Further radicals with „person“ are: sitting 匕, sitting cross-legged 夂, lying , kneeling ⺈, skilled才, bending マ,卩 or slumped 㔾 person)
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