Justice minister Keith Brown praises workers in the criminal justice system as he visits new facility in Inverness.
The 'high level of police officer deployment' required means officers will be unable to attend trials as witnesses.
Potential jurors will begin receiving notices from Monday in preparation of cases being heard in July.
SCTS chief executive Eric McQueen and Public Health Scotland's Dr Jim McMenamin will appear before MSPs.
Tuesday’s hearing at Inverness Sheriff Court will enable all parties in the case to appear in a virtual courtroom.