diff --git a/CHANGELOG.md b/CHANGELOG.md
index 12a2d94b31d..e745b57961e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -48,6 +48,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 * (x/{bank,distrib,gov,slashing,staking}) [\#8363](https://github.com/cosmos/cosmos-sdk/issues/8363) Store keys have been modified to allow for variable-length addresses.
 * (x/ibc) [\#8266](https://github.com/cosmos/cosmos-sdk/issues/8266) Add amino JSON for IBC messages in order to support Ledger text signing.
+* (x/evidence) [\#8502](https://github.com/cosmos/cosmos-sdk/pull/8502) `HandleEquivocationEvidence` persists the evidence to state.
 
 ### Improvements
 
diff --git a/x/evidence/keeper/infraction.go b/x/evidence/keeper/infraction.go
index 427c8de429e..3ae74bc216d 100644
--- a/x/evidence/keeper/infraction.go
+++ b/x/evidence/keeper/infraction.go
@@ -119,4 +119,5 @@ func (k Keeper) HandleEquivocationEvidence(ctx sdk.Context, evidence *types.Equi
 
 	k.slashingKeeper.JailUntil(ctx, consAddr, types.DoubleSignJailEndTime)
 	k.slashingKeeper.Tombstone(ctx, consAddr)
+	k.SetEvidence(ctx, evidence)
 }
diff --git a/x/evidence/keeper/infraction_test.go b/x/evidence/keeper/infraction_test.go
index 0f1adee14f4..4c7368b1df7 100644
--- a/x/evidence/keeper/infraction_test.go
+++ b/x/evidence/keeper/infraction_test.go
@@ -69,6 +69,10 @@ func (suite *KeeperTestSuite) TestHandleDoubleSign() {
 	tstaking.Ctx = ctx
 	tstaking.Denom = stakingParams.BondDenom
 	tstaking.Undelegate(sdk.AccAddress(operatorAddr), operatorAddr, totalBond, true)
+
+	// query evidence from store
+	evidences := suite.app.EvidenceKeeper.GetAllEvidence(ctx)
+	suite.Len(evidences, 1)
 }
 
 func (suite *KeeperTestSuite) TestHandleDoubleSign_TooOld() {
diff --git a/x/evidence/spec/01_concepts.md b/x/evidence/spec/01_concepts.md
index 78a16523daa..0d9f1a025d8 100644
--- a/x/evidence/spec/01_concepts.md
+++ b/x/evidence/spec/01_concepts.md
@@ -66,7 +66,8 @@ The `Handler` (defined below) is responsible for executing the entirety of the
 business logic for handling `Evidence`. This typically includes validating the
 evidence, both stateless checks via `ValidateBasic` and stateful checks via any
 keepers provided to the `Handler`. In addition, the `Handler` may also perform
-capabilities such as slashing and jailing a validator.
+capabilities such as slashing and jailing a validator. All `Evidence` handled 
+by the `Handler` should be persisted.
 
 ```go
 // Handler defines an agnostic Evidence handler. The handler is responsible