Cumulative Error Doctrine

To warrant relief under the cumulative error doctrine, there must have been “multiple errors committed in trial proceedings, each of which in isolation constitutes mere harmless error, but when aggregated, have a cumulative effect on the proceedings so great as to require reversal in order to preserve a defendant’s right to a fair trial.” State v. Hester, 324 S.W.3d 1, 76 (Tenn. 2010).

The cumulative error doctrine requires relief when “multiple errors [are] committed in the trial proceedings, each of which in isolation constitutes mere harmless error, but which when aggregated, have a cumulative effect on the proceedings so great as to require reversal in order to preserve a defendant’s right to a fair trial.” State v. Hester, 324 S.W.3d 1, 76–77 (Tenn. 2010) (internal citations omitted); see State v. Jordan, 325 S.W.3d 1, 79 (Tenn. 2010) (“‘[T]he combination of multiple errors may necessitate . . . reversal . . . even if individual errors do not require relief.’”) (quoting State v. Cribbs, 967 S.W.2d 773, 789 (Tenn. 1998)).

The cumulative error doctrine requires relief when “multiple errors [are] committed in the trial proceedings, each of which in isolation constitutes mere harmless error, but which when aggregated, have a cumulative effect on the proceedings so great as to require reversal in order to preserve a defendant’s right to a fair trial.” State v. Hester, 324 S.W.3d 1, 76–77 (Tenn. 2010) (internal citations omitted); see State v. Jordan, 325 S.W.3d 1, 79 (Tenn. 2010) (“‘[T]he combination of multiple errors may necessitate . . . reversal . . . even if individual errors do not require relief.’”) (quoting State v. Cribbs, 967 S.W.2d 773, 789 (Tenn. 1998)).

“[W]hen an attorney has made a series of errors that prevents the proper presentation of a defense, it is appropriate to consider the cumulative impact of the errors in assessing prejudice” of an ineffective assistance of counsel allegation. Timothy Terell McKinney v. State, No. W2006-02132-CCA-R3-PD, 2010 WL 796939, at *37 (Tenn. Crim. App. Mar. 9, 2010), perm. app. denied (Tenn. Aug. 25, 2010). More than one instance of deficient performance, when considered collectively, can result in a sufficient showing of prejudice pursuant to Strickland. Id. The question is whether counsel’s deficiencies “cumulatively prejudiced . . . the right to a fair proceeding and undermined confidence in the outcome of the trial.” Id. Counsel’s failure to conduct adequate pretrial preparation and investigation may establish prejudice pursuant to Strickland. Id.

The cumulative error doctrine applies to circumstances in which there have been “multiple errors committed in trial proceedings, each of which in isolation constitutes mere harmless error, but when aggregated, have a cumulative effect on the proceedings so great as to require reversal in order to preserve a defendant’s right to a fair trial.” State v. Hester, 324 S.W.3d 1, 76 (Tenn. 2010).

The cumulative error doctrine requires relief when “multiple errors [are] committed in the trial proceedings, each of which in isolation constitutes mere harmless error, but which when aggregated, have a cumulative effect on the proceedings so great as to require reversal in order to preserve a defendant’s right to a fair trial.” State v. Hester, 324 S.W.3d 1, 76–77 (Tenn. 2010) (internal citations omitted); see State v. Jordan, 325 S.W.3d 1, 79 (Tenn. 2010) (“‘[T]he combination of multiple errors may necessitate . . . reversal . . . even if individual errors do not require relief.’”) (quoting State v. Cribbs, 967 S.W.2d 773, 789 (Tenn. 1998)).