{"id":"5abb1bd6-e89f-4c18-b364-4acb572f32ee","anomaly_type":"contract_splitting","severity":"high","confidence_score":"0.9000","title":"Siemens Healthcare Diagnostics: 2 contracts within 90 days totaling $454,588","description":"The vendor Siemens Healthcare Diagnostics received 2 separate contracts within a 90-day window summing to $454,588. When the combined value crosses a procurement-approval threshold but each individual award stays below it, the pattern is classically called 'contract splitting' and warrants further review against the procurement code and any sole-source justifications. The pattern can also reflect legitimate phased work or multiple unrelated services with the same vendor. Tier 2: vendor-named observation, no individual characterization.","fiscal_year":null,"review_status":"auto","review_tier":2,"evidence":{"vendor":"Siemens Healthcare Diagnostics","contracts":[{"id":"e2345a5c-a121-4ade-9a46-801b02aad365","date":"2017-06-13","amount":227293.87,"department":"Unknown"},{"id":"966b216b-3cb4-4c17-943a-df5e2a209ff1","date":"2017-09-05","amount":227293.87,"department":"Unknown"}],"window_days":90,"content_hash":"3326e20c296c42b739cd20b511ee9188ac7a26236417621537edd008c2480b99","combined_total":454587.74,"contract_count":2},"published":true,"created_at":"2026-05-27T12:10:41.806625Z","related_entity_type":null,"related_entity_id":null,"reviewed_by":null,"reviewed_at":null,"reviewer_notes":null,"source_document_ids":null}