Del. Code Ann. tit. 11, § 900
(a) A person is guilty of issuing a bad check when the person issues or passes a check knowing that it will not be honored by the drawee. For the purpose of this section, as well as in any prosecution for theft committed by means of a bad check, it is prima facie evidence of knowledge that the check (other than a postdated check) would not be honored that:
Issuing a bad check is a class A misdemeanor unless the amount of the check is $1,500 or more, in which case it is a class G felony.
(b) The failure of any business or other commercial entity, prior to the completion of a transaction (other than a transaction by mail) for which a check is accepted in person by the payee as consideration for goods or services provided by the payee, to:
may result in the refusal of a law-enforcement agency to investigate violations of subsection (a) of this section.
11 Del. C. 1953, § 900; 58 Del. Laws, c. 497, § 1; 64 Del. Laws, c. 125, § 1; 65 Del. Laws, c. 497, § 6; 67 Del. Laws, c. 130, § 8; 70 Del. Laws, c. 211, § 7; 70 Del. Laws, c. 186, § 1; 70 Del. Laws, c. 501, § 1; 77 Del. Laws, c. 133, § 8