diff --git a/cpp/src/aztec3/circuits/rollup/base/.test.cpp b/cpp/src/aztec3/circuits/rollup/base/.test.cpp
index 961c6f59..c61b6da0 100644
--- a/cpp/src/aztec3/circuits/rollup/base/.test.cpp
+++ b/cpp/src/aztec3/circuits/rollup/base/.test.cpp
@@ -474,7 +474,9 @@ TEST_F(base_rollup_tests, nullifier_tree_regression)
     BaseRollupInputs empty_inputs = dummy_base_rollup_inputs_with_vk_proof();
 
     // This test runs after some data has already been inserted into the tree
-    // TODO: explain data
+    // This test will pre-populate the tree with 24 values (0 item + 23 more) simulating that a rollup inserting two
+    // random values has already been performed. This rollup then adds two further random values that will end up having
+    // their low nullifiers point at each other
     std::vector<fr> initial_values(23, 0);
     for (size_t i = 0; i < 7; i++) {
         initial_values[i] = i + 1;
@@ -493,7 +495,6 @@ TEST_F(base_rollup_tests, nullifier_tree_regression)
     AppendOnlyTreeSnapshot<NT> nullifier_tree_start_snapshot = std::get<1>(inputs_and_snapshots);
     AppendOnlyTreeSnapshot<NT> nullifier_tree_end_snapshot = std::get<2>(inputs_and_snapshots);
 
-    // We now have the correct tree - can debug in circuit
     /**
      * RUN
      */
@@ -512,6 +513,7 @@ TEST_F(base_rollup_tests, nullifier_tree_regression)
     ASSERT_EQ(outputs.end_nullifier_tree_snapshot, nullifier_tree_end_snapshot);
 }
 
+// Note leaving this test here as there are no negative tests, even though it no longer passes
 // TEST_F(base_rollup_tests, new_nullifier_tree_sparse_attack)
 // {
 //     // @todo THIS SHOULD NOT BE PASSING. The circuit should fail with an assert as we are trying to double-spend.
diff --git a/cpp/src/aztec3/circuits/rollup/base/native_base_rollup_circuit.cpp b/cpp/src/aztec3/circuits/rollup/base/native_base_rollup_circuit.cpp
index 81fac0b5..47c1aa67 100644
--- a/cpp/src/aztec3/circuits/rollup/base/native_base_rollup_circuit.cpp
+++ b/cpp/src/aztec3/circuits/rollup/base/native_base_rollup_circuit.cpp
@@ -291,9 +291,6 @@ AppendOnlySnapshot check_nullifier_tree_non_membership_and_insert_to_tree(DummyC
 
             // Witness containing index and path
             auto nullifier_index = 4 * i + j;
-            info("nullifier index", nullifier_index);
-
-            // info(nullifier_insertion_subtree);
 
             auto witness = baseRollupInputs.low_nullifier_membership_witness[nullifier_index];
             // Preimage of the lo-index required for a non-membership proof
@@ -301,12 +298,6 @@ AppendOnlySnapshot check_nullifier_tree_non_membership_and_insert_to_tree(DummyC
             // Newly created nullifier
             auto nullifier = new_nullifiers[j];
 
-            // preimage
-            info("preimage");
-            info("value: ", low_nullifier_preimage.leaf_value);
-            info("next index: ", low_nullifier_preimage.next_index);
-            info("next value: ", low_nullifier_preimage.next_value);
-
             // TODO: reason about this more strongly, can this cause issues?
             if (nullifier != 0) {
 
diff --git a/cpp/src/aztec3/circuits/rollup/base/nullifier_tree_testing_harness.cpp b/cpp/src/aztec3/circuits/rollup/base/nullifier_tree_testing_harness.cpp
index 38e1182d..3c44dd7f 100644
--- a/cpp/src/aztec3/circuits/rollup/base/nullifier_tree_testing_harness.cpp
+++ b/cpp/src/aztec3/circuits/rollup/base/nullifier_tree_testing_harness.cpp
@@ -76,8 +76,6 @@ NullifierMemoryTreeTestingHarness::circuit_prep_batch_insert(std::vector<fr> con
     // Start insertion index
     fr start_insertion_index = this->size();
 
-    info(values);
-
     // Low nullifiers
     std::vector<nullifier_leaf> low_nullifiers;
     std::vector<nullifier_leaf> pending_insertion_tree;
@@ -105,10 +103,6 @@ NullifierMemoryTreeTestingHarness::circuit_prep_batch_insert(std::vector<fr> con
         bool is_already_present;
         std::tie(current, is_already_present) = find_closest_leaf(leaves_, new_value);
 
-        info("new value: ", new_value);
-        info("current");
-        info(current);
-
         // If the inserted value is 0, then we ignore and provide a dummy low nullifier
         if (new_value == 0) {
             sibling_paths.push_back(empty_sp);