77.Section 45 provides that a summary sheriff may exercise all of the jurisdiction and powers of the sheriff in criminal investigations and proceedings (subsection (1)) including the powers of a sheriff under the 1995 Act (subsection (2)). This is subject to subsection (3), which exempts most aspects of solemn criminal proceedings from the powers and jurisdiction of the summary sheriff. Therefore a summary sheriff will deal with summary criminal proceedings and certain preliminary procedural steps in solemn criminal proceedings (and in none of these proceedings will sit with a jury). The provisions of this section are without prejudice to the jurisdiction and competence of a sheriff in relation to summary or solemn criminal investigations and proceedings (subsection (4)).