Section 526 - Burden of proof(a) In any proceeding before the Director under this chapter, the burden of proof shall be on the taxpayer, except with respect to the following issues, as to which the burden of proof shall be on the Director: (1) Whether the taxpayer has been guilty of fraud;(2) Whether the petitioner is liable as the transferee (within the meaning of § 560 of this title) of property of a taxpayer (but not to show that the taxpayer was liable for the tax); and(3) Whether the taxpayer is liable for any increase in a deficiency where such increase is asserted initially after the notice of proposed assessment under § 521(c) of this title was mailed and a protest under § 523 of this title was filed, unless such increase in deficiency is the result of a change or correction of federal tax liability required to be reported under § 514 of this title and of which change or correction the Director had no notice at the time the Director mailed the notice of proposed assessment.(b) In any proceeding before the Tax Appeal Board under this chapter, the burden of proof shall be upon the taxpayer, except with respect to the issues described in paragraphs (a)(1) and (2) of this section, as to which the burden of proof shall be on the Director.68 Del. Laws, c. 187, §1; 70 Del. Laws, c. 186, § 1.;