What is the effect of introducing new evidence at trial that takes the accused by surprise?

Alberta, Canada


The following excerpt is from R. v. Tkachuk, 1984 ABCA 26 (CanLII):

The introduction of new evidence at trial that takes the accused by surprise to his prejudice is in most cases remedied by the granting of an adjournment. In Caccamo v. Regina 1975 CanLII 11 (SCC), 21 C.C.C.(2d) 257 (S.C.C.) at page 276, De Grandpre J. said this: “It is within the framework of the adversary system, under which our criminal law is administered, that the accused must be guaranteed a fair trial. In that light, if the introduction of new evidence at the trial takes the accused by surprise, obviously he is entitled to a postponement.”

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