§ 89-i. Investigation. Within five business days after receipt of an application, the department shall transmit to the division two sets of fingerprints and the fees required pursuant to paragraph (b) of subdivision ten of section eighty-nine-h of this article. One set of fingerprints and the required fee shall be submitted to the federal bureau of investigation for a national criminal history record check. The results will be used to ascertain whether or not the applicant has been charged with or convicted of a serious offense and may cause to be conducted an investigation to verify the information contained in the application; provided, however, that the department shall cause such investigation to be conducted for applicants whose application has not been submitted and verified pursuant to section eighty-nine-g of this article. The department, in consultation with the division, may waive such background checks, investigations and fees if in its opinion, the security guard applicant has been subject to previous background checks and investigation requirements which meet or exceed the requirements of this section. The department, in consultation with the division, may not be required to conduct background checks or investigations for applicants who are also employed as peace officers.