(a) For the purposes of this title, “resident of the Virgin Islands” is a person who has maintained legal residence in the Virgin Islands and in the election district in which he desires to vote for a period of at least 90 days next preceding the date of the election. A registered voter of an election district, who is temporarily residing in another election district and expects to continue such temporary residence until after the ensuing primary or general election, may, in the manner provided by section 107 of this title, and upon application at least 30 days before the primary or election, transfer his registration to the election district in which he is temporarily residing. In all cases of doubt as to legal residence, the board of elections shall request the registrant to submit substantial and satisfactory proof that he has fulfilled the legal residence requirement. The domicile, which is the registrant's legal residence, shall be determined in accordance with the following rules:
(1) Every person has a domicile.
(2) There can be but one domicile.
(3) Legal residence or domicile is the place where a person habitually resides when not called elsewhere to work or for some temporary purpose and to which such person returns in season for rest.
(4) Legal domicile or residence may be changed by joinder of act and intent.
(5) A domicile cannot be lost until a new one has been acquired.
(b) This section shall be strictly enforced by the boards of elections.