Explanation:

- Option 1: By a Magistrate only

- Special summons under Section 206 of the Criminal Procedure Code (CrPC) can be issued by a Magistrate. This provision allows Magistrates to summon an accused in certain petty offenses.

- Option 2: By a Court of Sessions

- Courts of Sessions deal with serious offenses and don't issue special summons under Section 206 CrPC.

- Option 3: By a Magistrate as well as the Court of Sessions

- This option is incorrect because special summons under Section 206 are specifically handled by Magistrates.

- Option 4: By the High Court

- High Courts typically handle more complex cases and appeals, not the issuance of special summons under this section.

OPTION 1: BY A MAGISTRATE ONLY

**