8 GCA § 120.14: Judgment of Guilty: Time for Sentencing; Extensions.

(a) After a plea, finding or verdict of guilty against the defendant, the court shall order his detention or release as provided by § 40.85 and shall appoint a time for pronouncing judgment, which must be within 21 days after the plea, finding or verdict.

(b) Notwithstanding Subsection (a), the court may extend the period provided in Subsection (a);

(1) Not more than 10 days for the purpose of hearing or determining any motion for a new trial or in arrest of judgment;

(2) For such period as is necessary to permit preparation of the presentence report provided by § 80.12 of the Criminal and Correctional Code; or

(3) If in the opinion of the court there is a reasonable ground for believing the defendant to be incompetent to be proceeded against, until the question of incompetency has been heard and determined as provided by § 7.40 of the Criminal and Correctional Code.