如果你話要執正嚟做, 呢度有個 list (現職或退咗休都得) :
https://www.gov.uk/countersigning-passport-applications/accepted-occupations-for-countersignatories
最容易搵應該係: 中小學老師, 區議員, 社工, 牧師, 保險經紀, 旅遊代理, 配眼鏡既視光師
Who cannot be your countersignatory (邊啲人唔簽得, 以我理解)
related to them by birth or marriage (父母, 子女, 夫妻)
in a relationship with or live at the same address as them (「同居」或住在同一個地址)
十年前我問英國駐美領事館, officer 話 relative (親戚) 唔簽得, 但係現在這個網頁沒有講
有個題外話: countersign 點解可以係 nurse, 唔可以係 doctor?