diff --git a/src/backends/reference/workloads/DetectionPostProcess.hpp b/src/backends/reference/workloads/DetectionPostProcess.hpp
new file mode 100644
index 0000000..06e9e15
--- /dev/null
+++ b/src/backends/reference/workloads/DetectionPostProcess.hpp
@@ -0,0 +1,29 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#pragma once
+
+#include "armnn/Tensor.hpp"
+#include "armnn/Descriptors.hpp"
+
+namespace armnn
+{
+
+void DetectionPostProcess(const TensorInfo& boxEncodingsInfo,
+                          const TensorInfo& scoresInfo,
+                          const TensorInfo& anchorsInfo,
+                          const TensorInfo& detectionBoxesInfo,
+                          const TensorInfo& detectionClassesInfo,
+                          const TensorInfo& detectionScoresInfo,
+                          const TensorInfo& numDetectionsInfo,
+                          const DetectionPostProcessDescriptor& desc,
+                          const float* boxEncodings,
+                          const float* scores,
+                          const float* anchors,
+                          float* detectionBoxes,
+                          float* detectionClasses,
+                          float* detectionScores,
+                          float* numDetections);
+
+} // namespace armnn