Conn. Agencies Regs. § 30-6-B21
Unless allowed by section 30-20 of the Connecticut General Statutes or section 30-6-B21a of the Regulations of Connecticut State Agencies, no package store or druggist permittee shall permit the container of any alcoholic beverage to be opened on the permit premises, nor shall such permittee keep or permit to be kept on the permit premises any unsealed containers, except those containing such alcoholic liquors as are being used in compounding of physicians' prescriptions or for the manufacturing of United States pharmacopoeia or national formulary preparations or other medicinal preparations. The presence of any unsealed containers on the premises, except those used in tastings, may be considered as prima facie evidence of a violation of this section.
Conn. Agencies Regs. § 30-6-B21