The term 'OLD OLDSES' can be broken down into two parts: OLD and OLDSES. The first part, OLD, is an acronym for 'Office of Law Enforcement and Detection Services, ' which is a branch of the United States Department of Homeland Security. The second part, OLDSES, stands for 'Office of Law Enforcement and Detection Services Executive Staff, ' which is the executive staff of the Office of Law Enforcement and Detection Services. Together, these two terms refer to the executive staff of the Office of Law Enforcement and Detection Services within the United States Department of Homeland Security.