in dubioadv.

1636 S. Hoard Soules Miserie & Recoverie i. 106 As long as the will is, in dubio, in doubt whether it be best to doe the sinne, or no, all that while there is nothing done.

1682 J. Scarlett Stile of Exchanges 255 Those Bills that are given upon account of any Wager made, or for the assurance of things that are yet in dubio.

1736 A. Hope Petition 32 In dubio, the Presumption was for the Heir at Law, and that it was admitted, my Competitor was the Heir of Line.

1798 T. Jefferson Let. 4 Mar. in Papers (2003) XXX. 161 The issue..is in dubio.

1834 W. Scott Abbot (rev. ed.) 253 If you ask an Englishman of good birth, whether a person of the same name be connected with him, he answers (if in dubio,) ‘No—he is a mere namesake.’

1891 Rep. Cases Maritime Law New Ser. 6 107/2 Inasmuch as their evidence had put the matter in dubio, they were entitled to judgement.

1936 Virginia Law Rev. 22 411 It may be deduced from the eminent position of international arbitral Tribunals that, in dubio, no hierarchical subordination between different international Courts exists.

1983 London Mag. Apr. 106/2 Luca's hands are clasped tightly while Fra Angelico's delicate hand gestures hesitation, fingers in dubio.

2005 Cambr. Law Jrnl. 64 727 Here, the innocent purchaser had parted with possession prior to the conviction, and at a point in time where title to the goods was in dubio.