English Translation

這三個人被發現每人身上臧有一把劍。

These three people were found to have a dagger on their person respectively.
These three people were found to have a dagger with them respectively.
These three people were found to be in possession of a dagger respectively.

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首先, 劍可分為長劍和短劍, 相信能夠收藏在身上, 應該係短劍先合乎情理.

http://www.ldoceonline.com/dictionary/sword
sword [countable] 長劍
1 a weapon with a long pointed blade and a handle

http://www.ldoceonline.com/dictionary/dagger
http://hk.dictionary.yahoo.com/search.html?q=1&s=dagger
dag‧ger [countable] 短劍,匕首
1 a short pointed knife used as a weapon

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http://www.ldoceonline.com/dictionary/person
5 on/about your person
formal if you have something on or about your person, you have it in your pockets or attached to you:
Customs officers found a gun concealed about his person.

http://idioms.thefreedictionary.com/person
about/on your person (formal)
if you have something about your person, you are carrying it with you, often hidden in your clothing
She had a small tape recorder concealed about her person.

http://www.ilo.org/ilolex/cgi-lex/convde.pl?R080
(b) young itinerant workers working on their own account or on account of their parents should carry on their person a document authorising their employment and a badge which will permit their identification.

http://www.ldoceonline.com/dictionary/with
2 having, possessing, or carrying something:
a man with a gun

http://web.mlsnet.com/t100/stadium/bridgeview/prohibited_items/
For safety reasons, fans are refused entry if they are in possession of prohibited items.


圖片參考：http://l.yimg.com/f/i/tw/ugc/rte/smiley_1.gif
peace

2009-06-25 13:12:55 補充：
多謝閣下指點!

居然一條中譯英的問題, 令我認識到一位其他領域的高手"棄聖絕智",

真係要多謝發問者"hkpbrother".

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祝您好運!

中國早已有軟劍, 可以藏在皮帶內, 長短皆可.

A sword is found on body of these three people respectively .