At any public hearing held pursuant to this subchapter, the Department of Land Use may summon witnesses, administer oaths and compel the giving of testimony.
48 Del. Laws, c. 321, § 6; 9 Del. C. 1953, § 2609; 55 Del. Laws, c. 85, § 18B; 66 Del. Laws, c. 207, § 1; 71 Del. Laws, c. 401, § 85.