diff --git a/discovery/endorsement/endorsement.go b/discovery/endorsement/endorsement.go
index e3149bd0391..4611655d792 100644
--- a/discovery/endorsement/endorsement.go
+++ b/discovery/endorsement/endorsement.go
@@ -268,6 +268,23 @@ func (ea *endorsementAnalyzer) computePrincipalSets(channelID common.ChannelID,
 			sessionLogger.Debug("Policy for chaincode '", chaincode, "'doesn't exist")
 			return nil, errors.New("policy not found")
 		}
+		if chaincode.DisregardNamespacePolicy && len(chaincode.KeyPolicies) == 0 && len(policies) == 1 {
+			sessionLogger.Warnf("Client requested to disregard chaincode %s's policy, but it did not specify any "+
+				"collection policies or key policies. This is probably a bug in the client side code, as the client should"+
+				"either not specify DisregardNamespacePolicy, or specify at least one key policy or at least one collection policy", chaincode.Name)
+			return nil, errors.Errorf("requested to disregard chaincode %s's policy but key and collection policies are missing, either "+
+				"disable DisregardNamespacePolicy or specify at least one key policy or at least one collection policy", chaincode.Name)
+		}
+		if chaincode.DisregardNamespacePolicy {
+			if len(policies) == 1 {
+				sessionLogger.Debugf("Client requested to disregard the namespace policy for chaincode %s,"+
+					" and no collection policies are present", chaincode.Name)
+				continue
+			}
+			sessionLogger.Debugf("Client requested to disregard the namespace policy for chaincode %s,"+
+				" however there exist %d collection policies taken into account", chaincode.Name, len(policies)-1)
+			policies = policies[1:]
+		}
 		inquireablePoliciesForChaincodeAndCollections = append(inquireablePoliciesForChaincodeAndCollections, policies...)
 	}
 
diff --git a/discovery/endorsement/endorsement_test.go b/discovery/endorsement/endorsement_test.go
index a9745ad7627..5fdfc14dca0 100644
--- a/discovery/endorsement/endorsement_test.go
+++ b/discovery/endorsement/endorsement_test.go
@@ -751,6 +751,163 @@ func TestPeersForEndorsement(t *testing.T) {
 			peerIdentityString("p6"): {},
 		}, intersection)
 	})
+
+	t.Run("Chaincode call with DisregardNamespacePolicy set but no key policies or collection policies present", func(t *testing.T) {
+		// Scenario XVI: A chaincode call with DisregardNamespacePolicy set
+		// Total organizations are 0, 2, 4, 6, 10, 12
+		// and there is a collection specified by the client but no collection policies exist
+		// We expect an error because since DisregardNamespacePolicy is specified, and no collection policies are defined,
+		// there is not a single endorsement policy to compute.
+
+		chanPeers := peerSet{}
+		for _, id := range []int{0, 2, 4, 6, 10, 12} {
+			peer := newPeer(id).withChaincode("cc1", "1.0")
+			chanPeers = append(chanPeers, peer)
+		}
+
+		g.On("PeersOfChannel").Return(chanPeers.toMembers()).Once()
+
+		mf := &metadataFetcher{}
+		mf.On("Metadata").Return(&chaincode.Metadata{
+			Name:    "cc1",
+			Version: "1.0",
+		}).Once()
+
+		pb := principalBuilder{}
+		cc1policy := pb.newSet().addPrincipal(peerRole("p0")).addPrincipal(peerRole("p2")).
+			newSet().addPrincipal(peerRole("p6")).addPrincipal(peerRole("p10")).buildPolicy()
+
+		pf.On("PoliciesByChaincode", "cc1").Return(cc1policy).Once()
+
+		analyzer := NewEndorsementAnalyzer(g, pf, &principalEvaluatorMock{}, mf)
+		desc, err := analyzer.PeersForEndorsement(channel, &peer.ChaincodeInterest{
+			Chaincodes: []*peer.ChaincodeCall{
+				{
+					Name:                     "cc1",
+					DisregardNamespacePolicy: true,
+				},
+			},
+		})
+		require.EqualError(t, err, "requested to disregard chaincode cc1's policy but key and collection policies are missing,"+
+			" either disable DisregardNamespacePolicy or specify at least one key policy or at least one collection policy")
+		require.Nil(t, desc)
+	})
+
+	t.Run("Chaincode call with state based endorsement policy and no chaincode namespace policy", func(t *testing.T) {
+		// Scenario XVII: A chaincode call with a state based endorsement policy and DisregardNamespacePolicy set
+		// Total organizations are 0, 2, 4, 6, 10, 12
+		// and the endorsement policies of the chaincode is:
+		// cc1: OR(AND(0, 2), AND(6, 10))
+		// However the chaincode call is accompanied with a hint
+		// for a state based endorsement policy for both organizations 2 and 6
+		// Therefore, the result should be: {2, 6}
+
+		chanPeers := peerSet{}
+		for _, id := range []int{0, 2, 4, 6, 10, 12} {
+			peer := newPeer(id).withChaincode("cc1", "1.0")
+			chanPeers = append(chanPeers, peer)
+		}
+
+		g.On("PeersOfChannel").Return(chanPeers.toMembers()).Once()
+
+		mf := &metadataFetcher{}
+		mf.On("Metadata").Return(&chaincode.Metadata{
+			Name:    "cc1",
+			Version: "1.0",
+		}).Once()
+
+		pb := principalBuilder{}
+		cc1policy := pb.newSet().addPrincipal(peerRole("p0")).addPrincipal(peerRole("p2")).
+			newSet().addPrincipal(peerRole("p6")).addPrincipal(peerRole("p10")).buildPolicy()
+
+		pf.On("PoliciesByChaincode", "cc1").Return(cc1policy).Once()
+
+		analyzer := NewEndorsementAnalyzer(g, pf, &principalEvaluatorMock{}, mf)
+		desc, err := analyzer.PeersForEndorsement(channel, &peer.ChaincodeInterest{
+			Chaincodes: []*peer.ChaincodeCall{
+				{
+					Name:                     "cc1",
+					DisregardNamespacePolicy: true,
+					KeyPolicies: []*common2.SignaturePolicyEnvelope{
+						{
+							Identities: []*msp.MSPPrincipal{peerRole("p2")},
+							Rule:       policydsl.SignedBy(0),
+						},
+						{
+							Identities: []*msp.MSPPrincipal{peerRole("p6")},
+							Rule:       policydsl.SignedBy(0),
+						},
+					},
+				},
+			},
+		})
+		require.NoError(t, err)
+		require.NotNil(t, desc)
+		require.Len(t, desc.Layouts, 1)
+		require.Len(t, desc.Layouts[0].QuantitiesByGroup, 2)
+		require.Equal(t, map[string]struct{}{
+			peerIdentityString("p2"): {},
+			peerIdentityString("p6"): {},
+		}, extractPeers(desc))
+	})
+
+	t.Run("Chaincode call with collection endorsement policy and no namespace endorsement policy", func(t *testing.T) {
+		// Scenario XVIII: A chaincode call with collection endorsement policy and DisregardNamespacePolicy set
+		// The chaincode EP is OR(AND(0, 2), AND(6, 10))
+		// The collection endorsement policy is p0 and p2.
+		// Additionally, the client sets DisregardNamespacePolicy which makes
+		// discovery only use the collection policy and not the namespace policy.
+
+		chanPeers := peerSet{}
+		for _, id := range []int{0, 2, 4, 6, 10, 12} {
+			peer := newPeer(id).withChaincode("cc1", "1.0")
+			chanPeers = append(chanPeers, peer)
+		}
+
+		g.On("PeersOfChannel").Return(chanPeers.toMembers()).Once()
+
+		collectionOrgs := []*msp.MSPPrincipal{
+			peerRole("p0"),
+			peerRole("p2"),
+		}
+		col2principals := map[string][]*msp.MSPPrincipal{
+			"collection": collectionOrgs,
+		}
+		mf := &metadataFetcher{}
+		mf.On("Metadata").Return(&chaincode.Metadata{
+			Name:              "cc1",
+			Version:           "1.0",
+			CollectionsConfig: buildCollectionConfig(col2principals),
+		}).Once()
+
+		pb := principalBuilder{}
+		cc1policy := pb.newSet().addPrincipal(peerRole("p0")).addPrincipal(peerRole("p2")).
+			newSet().addPrincipal(peerRole("p6")).addPrincipal(peerRole("p10")).buildPolicy()
+
+		collectionEP := pb.newSet().addPrincipal(peerRole("p0")). // p0 and p6
+										addPrincipal(peerRole("p2")).buildPolicy()
+
+		pf.On("PoliciesByChaincode", "cc1").Return([]policies.InquireablePolicy{cc1policy, collectionEP}).Once()
+
+		analyzer := NewEndorsementAnalyzer(g, pf, &principalEvaluatorMock{}, mf)
+		desc, err := analyzer.PeersForEndorsement(channel, &peer.ChaincodeInterest{
+			Chaincodes: []*peer.ChaincodeCall{
+				{
+					Name:                     "cc1",
+					DisregardNamespacePolicy: true,
+					CollectionNames:          []string{"collection"},
+				},
+			},
+		})
+		require.NoError(t, err)
+		require.NotNil(t, desc)
+		require.Len(t, desc.Layouts, 1)
+		require.Len(t, desc.Layouts[0].QuantitiesByGroup, 2)
+		require.Equal(t, map[string]struct{}{
+			peerIdentityString("p0"): {},
+			peerIdentityString("p2"): {},
+		}, extractPeers(desc))
+	})
 }
 
 func TestPeersAuthorizedByCriteria(t *testing.T) {
diff --git a/go.mod b/go.mod
index afd382ae176..bfa925051e5 100644
--- a/go.mod
+++ b/go.mod
@@ -30,7 +30,7 @@ require (
 	github.com/hyperledger/fabric-chaincode-go v0.0.0-20201119163726-f8ef75b17719
 	github.com/hyperledger/fabric-config v0.1.0
 	github.com/hyperledger/fabric-lib-go v1.0.0
-	github.com/hyperledger/fabric-protos-go v0.0.0-20210717172449-368ac8b7bc5b
+	github.com/hyperledger/fabric-protos-go v0.0.0-20210720123151-f0dc3e2a0871
 	github.com/kr/pretty v0.2.1
 	github.com/magiconair/properties v1.8.1 // indirect
 	github.com/mattn/go-runewidth v0.0.4 // indirect
diff --git a/go.sum b/go.sum
index ef6229e518d..68a89248f7a 100644
--- a/go.sum
+++ b/go.sum
@@ -161,8 +161,8 @@ github.com/hyperledger/fabric-lib-go v1.0.0 h1:UL1w7c9LvHZUSkIvHTDGklxFv2kTeva1Q
 github.com/hyperledger/fabric-lib-go v1.0.0/go.mod h1:H362nMlunurmHwkYqR5uHL2UDWbQdbfz74n8kbCFsqc=
 github.com/hyperledger/fabric-protos-go v0.0.0-20190919234611-2a87503ac7c9/go.mod h1:xVYTjK4DtZRBxZ2D9aE4y6AbLaPwue2o/criQyQbVD0=
 github.com/hyperledger/fabric-protos-go v0.0.0-20200424173316-dd554ba3746e/go.mod h1:xVYTjK4DtZRBxZ2D9aE4y6AbLaPwue2o/criQyQbVD0=
-github.com/hyperledger/fabric-protos-go v0.0.0-20210717172449-368ac8b7bc5b h1:F3UmdNp9Hl6OCw3NwmEjrkJzG08X0+Xmt3NhmPnueE8=
-github.com/hyperledger/fabric-protos-go v0.0.0-20210717172449-368ac8b7bc5b/go.mod h1:xVYTjK4DtZRBxZ2D9aE4y6AbLaPwue2o/criQyQbVD0=
+github.com/hyperledger/fabric-protos-go v0.0.0-20210720123151-f0dc3e2a0871 h1:d7do07Q4LaOFAEWceRwUwVDdcfx3BdLeZYyUGtbHfRk=
+github.com/hyperledger/fabric-protos-go v0.0.0-20210720123151-f0dc3e2a0871/go.mod h1:xVYTjK4DtZRBxZ2D9aE4y6AbLaPwue2o/criQyQbVD0=
 github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
diff --git a/vendor/github.com/hyperledger/fabric-protos-go/peer/proposal_response.pb.go b/vendor/github.com/hyperledger/fabric-protos-go/peer/proposal_response.pb.go
index a50783d6316..5d4d3b49cd6 100644
--- a/vendor/github.com/hyperledger/fabric-protos-go/peer/proposal_response.pb.go
+++ b/vendor/github.com/hyperledger/fabric-protos-go/peer/proposal_response.pb.go
@@ -373,10 +373,12 @@ type ChaincodeCall struct {
 	NoPublicWrites  bool     `protobuf:"varint,4,opt,name=no_public_writes,json=noPublicWrites,proto3" json:"no_public_writes,omitempty"`
 	// The set of signature policies associated with states in the write-set
 	// that have state-based endorsement policies.
-	KeyPolicies          []*common.SignaturePolicyEnvelope `protobuf:"bytes,5,rep,name=key_policies,json=keyPolicies,proto3" json:"key_policies,omitempty"`
-	XXX_NoUnkeyedLiteral struct{}                          `json:"-"`
-	XXX_unrecognized     []byte                            `json:"-"`
-	XXX_sizecache        int32                             `json:"-"`
+	KeyPolicies []*common.SignaturePolicyEnvelope `protobuf:"bytes,5,rep,name=key_policies,json=keyPolicies,proto3" json:"key_policies,omitempty"`
+	// Indicates we wish to ignore the namespace endorsement policy
+	DisregardNamespacePolicy bool     `protobuf:"varint,6,opt,name=disregard_namespace_policy,json=disregardNamespacePolicy,proto3" json:"disregard_namespace_policy,omitempty"`
+	XXX_NoUnkeyedLiteral     struct{} `json:"-"`
+	XXX_unrecognized         []byte   `json:"-"`
+	XXX_sizecache            int32    `json:"-"`
 }
 
 func (m *ChaincodeCall) Reset()         { *m = ChaincodeCall{} }
@@ -443,6 +445,13 @@ func (m *ChaincodeCall) GetKeyPolicies() []*common.SignaturePolicyEnvelope {
 	return nil
 }
 
+func (m *ChaincodeCall) GetDisregardNamespacePolicy() bool {
+	if m != nil {
+		return m.DisregardNamespacePolicy
+	}
+	return false
+}
+
 func init() {
 	proto.RegisterType((*ProposalResponse)(nil), "protos.ProposalResponse")
 	proto.RegisterType((*Response)(nil), "protos.Response")
@@ -455,41 +464,42 @@ func init() {
 func init() { proto.RegisterFile("peer/proposal_response.proto", fileDescriptor_2ed51030656d961a) }
 
 var fileDescriptor_2ed51030656d961a = []byte{
-	// 563 bytes of a gzipped FileDescriptorProto
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-	0x04, 0x00, 0x00,
+	// 591 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x6c, 0x54, 0xdd, 0x6b, 0xdb, 0x3e,
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+	0x1d, 0x96, 0x2c, 0x27, 0x5d, 0xf7, 0x64, 0xdf, 0xa3, 0x73, 0xcf, 0xbd, 0xf7, 0xe8, 0x03, 0x4e,
+	0x4b, 0x44, 0x15, 0x97, 0x4a, 0x96, 0x52, 0xb3, 0x7c, 0xae, 0x50, 0x97, 0x52, 0x68, 0x8c, 0x4a,
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+	0x02, 0x38, 0xda, 0xa0, 0xd2, 0x5c, 0x8a, 0xa0, 0x33, 0xe9, 0x4c, 0x0f, 0xa8, 0x0f, 0xc9, 0x1b,
+	0xe8, 0xb7, 0xc2, 0x41, 0x77, 0xd2, 0x99, 0x0e, 0x2e, 0xc7, 0x91, 0x2b, 0x1d, 0xf9, 0xd2, 0xd1,
+	0x67, 0xcf, 0xa0, 0x5b, 0x32, 0x39, 0x87, 0x9e, 0x6f, 0x3d, 0xd8, 0xb7, 0x89, 0x23, 0x97, 0xa1,
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+	0x87, 0xd4, 0x87, 0xe4, 0x0a, 0x06, 0x28, 0x52, 0xa9, 0x34, 0x16, 0x28, 0x4c, 0x70, 0x68, 0xa5,
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+	0x96, 0x1a, 0x7e, 0x81, 0x5e, 0xeb, 0xca, 0x33, 0x38, 0xd4, 0x86, 0x99, 0xb5, 0x6e, 0x4c, 0x69,
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+	0x25, 0x04, 0xf6, 0x05, 0x2b, 0xd0, 0xf6, 0xd4, 0xa7, 0xf6, 0x9f, 0xbc, 0x82, 0x51, 0x22, 0xf3,
+	0x1c, 0x13, 0xc3, 0xa5, 0x98, 0xd7, 0x90, 0x0e, 0xba, 0x93, 0xbd, 0x69, 0x9f, 0xfe, 0xbf, 0xc5,
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+	0x5c, 0xff, 0xe3, 0xf4, 0x24, 0x2b, 0x96, 0xe1, 0xb7, 0xf3, 0x8c, 0x9b, 0xe5, 0x7a, 0x51, 0x37,
+	0x1c, 0xef, 0x68, 0xc4, 0x4e, 0xe3, 0xc2, 0x69, 0x5c, 0x64, 0x32, 0xae, 0x65, 0x16, 0xee, 0xf5,
+	0x78, 0xfd, 0x27, 0x00, 0x00, 0xff, 0xff, 0x6d, 0x2e, 0xf7, 0xb3, 0x64, 0x04, 0x00, 0x00,
 }
diff --git a/vendor/modules.txt b/vendor/modules.txt
index d38eef62256..8a8fe3d5271 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -195,7 +195,7 @@ github.com/hyperledger/fabric-config/protolator/protoext/peerext
 # github.com/hyperledger/fabric-lib-go v1.0.0
 ## explicit
 github.com/hyperledger/fabric-lib-go/healthz
-# github.com/hyperledger/fabric-protos-go v0.0.0-20210717172449-368ac8b7bc5b
+# github.com/hyperledger/fabric-protos-go v0.0.0-20210720123151-f0dc3e2a0871
 ## explicit
 github.com/hyperledger/fabric-protos-go/common
 github.com/hyperledger/fabric-protos-go/discovery