NO. WORD POS EHOWNET
1 無頭公案 Nac {affairs|事務:domain={police|警},qualification={difficult|難:theme={judge|裁定}}}
2 無頭案 Nac {affairs|事務:domain={police|警},qualification={difficult|難:theme={judge|裁定}}}
3 疑案 Nac {affairs|事務:domain={police|警},qualification={difficult|難:theme={judge|裁定}}}
4 難說 VK2 {difficult|難:theme={judge|裁定}}