Del. Code tit. 10, § 2105

The sheriffs of the respective counties are required, as often as there may be occasion, to summon all inquests or jurors, which sheriffs ought to summon, and witnesses necessary for executing justice. For every neglect or default under this section, every sheriff shall be fined $50. The sheriff shall further be liable in damages to any party injured by such neglect or default. The sheriff shall collect no fees, costs or mileage fees from the office of the Attorney General for the service of subpoenas.