The Commission, or any party to proceedings before the Commission, may cause the deposition of witnesses residing within or without this State to be taken in the same manner as prescribed by law or by rules of the Superior Court for taking depositions in civil actions.
47 Del. Laws, c. 254, § 11; 48 Del. Laws, c. 371, § 16; 26 Del. C. 1953, § 188; 59 Del. Laws, c. 397, § 1.