(1)推定证据
指初步证据〔prima facie evidence〕或非确定性的证据，对方当事人可以提出反证予以反驳。

(2)(=circumstantial evidence)

• blue box
• blue chip
• blue-chip stock
• Blue Cross
• Blue Cross contract
• blue flu
• blue law
• blue list
• bluemantle
• blue nose
• blue notes
• blue pencil doctrine
• blue-ribbon jury
• Blue Ribbon Law Schools
• Blue Shield
• blue sky laws
• blue slip veto
• bluff
• blumba
• blunder
• blunderbuss
• blunt instrument
• board
• boardinghouse
• boardinghouse keeper's lien