diff --git a/blockchain/reactor.go b/blockchain/reactor.go
index e41300d5e..f985e2849 100644
--- a/blockchain/reactor.go
+++ b/blockchain/reactor.go
@@ -272,7 +272,9 @@ FOR_LOOP:
 					// NOTE: we could improve performance if we
 					// didn't make the app commit to disk every block
 					// ... but we would need a way to get the hash without it persisting
-					err := bcR.state.ApplyBlock(bcR.eventBus, bcR.proxyAppConn, first, firstPartsHeader, types.MockMempool{})
+					err := bcR.state.ApplyBlock(bcR.eventBus, bcR.proxyAppConn,
+						first, firstPartsHeader,
+						types.MockMempool{}, types.MockEvidencePool{}) // TODO unmock!
 					if err != nil {
 						// TODO This is bad, are we zombie?
 						cmn.PanicQ(cmn.Fmt("Failed to process committed block (%d:%X): %v", first.Height, first.Hash(), err))
diff --git a/consensus/replay.go b/consensus/replay.go
index 57a9dd4cc..56f09d129 100644
--- a/consensus/replay.go
+++ b/consensus/replay.go
@@ -354,11 +354,13 @@ func (h *Handshaker) replayBlocks(proxyApp proxy.AppConns, appBlockHeight, store
 // ApplyBlock on the proxyApp with the last block.
 func (h *Handshaker) replayBlock(height int64, proxyApp proxy.AppConnConsensus) ([]byte, error) {
 	mempool := types.MockMempool{}
+	evpool := types.MockEvidencePool{}
 
 	block := h.store.LoadBlock(height)
 	meta := h.store.LoadBlockMeta(height)
 
-	if err := h.state.ApplyBlock(types.NopEventBus{}, proxyApp, block, meta.BlockID.PartsHeader, mempool); err != nil {
+	if err := h.state.ApplyBlock(types.NopEventBus{}, proxyApp,
+		block, meta.BlockID.PartsHeader, mempool, evpool); err != nil {
 		return nil, err
 	}
 
diff --git a/consensus/replay_test.go b/consensus/replay_test.go
index 43c2a4699..495fc42cc 100644
--- a/consensus/replay_test.go
+++ b/consensus/replay_test.go
@@ -261,7 +261,9 @@ const (
 )
 
 var (
-	mempool = types.MockMempool{}
+	NUM_BLOCKS = 6 // number of blocks in the test_data/many_blocks.cswal
+	mempool    = types.MockMempool{}
+	evpool     = types.MockEvidencePool{}
 )
 
 //---------------------------------------
@@ -394,7 +396,7 @@ func testHandshakeReplay(t *testing.T, nBlocks int, mode uint) {
 
 func applyBlock(st *sm.State, blk *types.Block, proxyApp proxy.AppConns) {
 	testPartSize := st.ConsensusParams.BlockPartSizeBytes
-	err := st.ApplyBlock(types.NopEventBus{}, proxyApp.Consensus(), blk, blk.MakePartSet(testPartSize).Header(), mempool)
+	err := st.ApplyBlock(types.NopEventBus{}, proxyApp.Consensus(), blk, blk.MakePartSet(testPartSize).Header(), mempool, evpool)
 	if err != nil {
 		panic(err)
 	}
diff --git a/consensus/state.go b/consensus/state.go
index 7531f1975..5e83e6a56 100644
--- a/consensus/state.go
+++ b/consensus/state.go
@@ -1208,7 +1208,9 @@ func (cs *ConsensusState) finalizeCommit(height int64) {
 	// Execute and commit the block, update and save the state, and update the mempool.
 	// All calls to the proxyAppConn come here.
 	// NOTE: the block.AppHash wont reflect these txs until the next block
-	err := stateCopy.ApplyBlock(txEventBuffer, cs.proxyAppConn, block, blockParts.Header(), cs.mempool)
+	err := stateCopy.ApplyBlock(txEventBuffer, cs.proxyAppConn,
+		block, blockParts.Header(),
+		cs.mempool, cs.evpool)
 	if err != nil {
 		cs.Logger.Error("Error on ApplyBlock. Did the application crash? Please restart tendermint", "err", err)
 		err := cmn.Kill()
@@ -1236,8 +1238,6 @@ func (cs *ConsensusState) finalizeCommit(height int64) {
 
 	fail.Fail() // XXX
 
-	// TODO: cs.evpool.Update()
-
 	// NewHeightStep!
 	cs.updateToState(stateCopy)
 
diff --git a/evidence/evidence_pool.go b/evidence/evidence_pool.go
index 41f51ee97..daa0f9bef 100644
--- a/evidence/evidence_pool.go
+++ b/evidence/evidence_pool.go
@@ -73,25 +73,9 @@ func (evpool *EvidencePool) AddEvidence(evidence types.Evidence) (err error) {
 	return nil
 }
 
-// Update informs the evpool that the given evidence was committed and can be discarded.
-// NOTE: this should be called *after* block is committed by consensus.
-func (evpool *EvidencePool) Update(height int, evidence []types.Evidence) {
-
-	// First, create a lookup map of new committed evidence
-
-	evMap := make(map[string]struct{})
+// MarkEvidenceAsCommitted marks all the evidence as committed.
+func (evpool *EvidencePool) MarkEvidenceAsCommitted(evidence []types.Evidence) {
 	for _, ev := range evidence {
 		evpool.evidenceStore.MarkEvidenceAsCommitted(ev)
-		evMap[string(ev.Hash())] = struct{}{}
 	}
-
-	// Remove evidence that is already committed .
-	goodEvidence := evpool.filterEvidence(evMap)
-	_ = goodEvidence
-
-}
-
-func (evpool *EvidencePool) filterEvidence(blockEvidenceMap map[string]struct{}) []types.Evidence {
-	// TODO:
-	return nil
 }
diff --git a/state/execution.go b/state/execution.go
index 539d1cd31..f6f6a314b 100644
--- a/state/execution.go
+++ b/state/execution.go
@@ -327,7 +327,8 @@ func (s *State) validateBlock(b *types.Block) error {
 // commits it, and saves the block and state. It's the only function that needs to be called
 // from outside this package to process and commit an entire block.
 func (s *State) ApplyBlock(txEventPublisher types.TxEventPublisher, proxyAppConn proxy.AppConnConsensus,
-	block *types.Block, partsHeader types.PartSetHeader, mempool types.Mempool) error {
+	block *types.Block, partsHeader types.PartSetHeader,
+	mempool types.Mempool, evpool types.EvidencePool) error {
 
 	abciResponses, err := s.ValExecBlock(txEventPublisher, proxyAppConn, block)
 	if err != nil {
@@ -355,6 +356,8 @@ func (s *State) ApplyBlock(txEventPublisher types.TxEventPublisher, proxyAppConn
 
 	fail.Fail() // XXX
 
+	evpool.MarkEvidenceAsCommitted(block.Evidence.Evidence)
+
 	// save the state and the validators
 	s.Save()
 
diff --git a/state/execution_test.go b/state/execution_test.go
index 25d32cbbc..7cda5c1da 100644
--- a/state/execution_test.go
+++ b/state/execution_test.go
@@ -93,7 +93,10 @@ func TestApplyBlock(t *testing.T) {
 
 	block := makeBlock(state, 1)
 
-	err = state.ApplyBlock(types.NopEventBus{}, proxyApp.Consensus(), block, block.MakePartSet(testPartSize).Header(), types.MockMempool{})
+	err = state.ApplyBlock(types.NopEventBus{}, proxyApp.Consensus(),
+		block, block.MakePartSet(testPartSize).Header(),
+		types.MockMempool{}, types.MockEvidencePool{})
+
 	require.Nil(t, err)
 
 	// TODO check state and mempool
diff --git a/types/services.go b/types/services.go
index 10014e660..b23ccff44 100644
--- a/types/services.go
+++ b/types/services.go
@@ -87,6 +87,7 @@ type State interface {
 type EvidencePool interface {
 	PendingEvidence() []Evidence
 	AddEvidence(Evidence) error
+	MarkEvidenceAsCommitted([]Evidence)
 }
 
 // MockMempool is an empty implementation of a Mempool, useful for testing.
@@ -94,5 +95,6 @@ type EvidencePool interface {
 type MockEvidencePool struct {
 }
 
-func (m MockEvidencePool) PendingEvidence() []Evidence { return nil }
-func (m MockEvidencePool) AddEvidence(Evidence) error  { return nil }
+func (m MockEvidencePool) PendingEvidence() []Evidence        { return nil }
+func (m MockEvidencePool) AddEvidence(Evidence) error         { return nil }
+func (m MockEvidencePool) MarkEvidenceAsCommitted([]Evidence) {}