Operation Adder considered an allegation that an unknown customs officer from the now Department of Home Affairs was using their position to assist in the importation of drugs into Australia. These allegations arose from a referral made to ACLEI. Operation Adder commenced as a joint investigation with ACLEI and the Australian Federal Police. While the investigation identified the staff member described in the referral, it did not find any evidence the staff member was assisting in the importation of drugs into Australia. The investigation did however find evidence the staff member had disclosed protected information to two associates. The Integrity Commissioner made a corruption finding against the staff member for disclosing information from the Department of Home Affairs on the basis they gained social capital for the disclosures.