Where the sheriff is sitting in summary proceedings during the period in which the jury in a criminal trial in which he has presided are retired to consider their verdict, it shall be lawful, if he considers it appropriate to do so, to interrupt those proceedings—
(a)in order to receive the verdict of the jury and dispose of the cause to which it relates;
(b)to give a direction to the jury on any matter on which they may wish one from him, or to hear a request from them regarding any matter,
and the interruption shall not affect the validity of the proceedings nor cause the instance to fall in respect of any person accused in the proceedings.