diff --git a/core/capabilities/testutils/backend.go b/core/capabilities/testutils/backend.go
index 9ec15a56899..fac9124f9ff 100644
--- a/core/capabilities/testutils/backend.go
+++ b/core/capabilities/testutils/backend.go
@@ -45,7 +45,7 @@ type EVMBackendTH struct {
 
 // Test harness to create a simulated backend for testing a LOOPCapability
 func NewEVMBackendTH(t *testing.T) *EVMBackendTH {
-	lggr, _ := logger.NewLogger()
+	lggr := logger.TestLogger(t)
 
 	ownerKey := cltest.MustGenerateRandomKey(t)
 	contractsOwner, err := bind.NewKeyedTransactorWithChainID(ownerKey.ToEcdsaPrivKey(), testutils.SimulatedChainID)
diff --git a/core/capabilities/triggers/logevent/service.go b/core/capabilities/triggers/logevent/service.go
index d9e9d1e76f3..9f839c87856 100644
--- a/core/capabilities/triggers/logevent/service.go
+++ b/core/capabilities/triggers/logevent/service.go
@@ -41,7 +41,7 @@ type TriggerService struct {
 
 // Common capability level config across all workflows
 type Config struct {
-	ChainID        uint64 `json:"chainId"`
+	ChainID        string `json:"chainId"`
 	Network        string `json:"network"`
 	LookbackBlocks uint64 `json:"lookbakBlocks"`
 	PollPeriod     uint32 `json:"pollPeriod"`
@@ -54,7 +54,6 @@ func (config Config) Version(capabilityVersion string) string {
 type Params struct {
 	Logger         logger.Logger
 	Relayer        core.Relayer
-	RelayerSet     core.RelayerSet
 	LogEventConfig Config
 }
 
@@ -63,7 +62,7 @@ var _ services.Service = &TriggerService{}
 
 // Creates a new Cron Trigger Service.
 // Scheduling will commence on calling .Start()
-func NewLogEventTriggerService(p Params) *TriggerService {
+func NewTriggerService(p Params) *TriggerService {
 	l := logger.Named(p.Logger, "LogEventTriggerCapabilityService")
 
 	logEventStore := NewCapabilitiesStore[logEventTrigger, capabilities.TriggerResponse]()
@@ -74,7 +73,6 @@ func NewLogEventTriggerService(p Params) *TriggerService {
 		relayer:        p.Relayer,
 		logEventConfig: p.LogEventConfig,
 		stopChan:       make(services.StopChan),
-		wg:             sync.WaitGroup{},
 	}
 	s.CapabilityInfo, _ = s.Info(context.Background())
 	s.Validator = capabilities.NewValidator[RequestConfig, Input, capabilities.TriggerResponse](capabilities.ValidatorArgs{Info: s.CapabilityInfo})
@@ -100,7 +98,8 @@ func (s *TriggerService) RegisterTrigger(ctx context.Context, req capabilities.T
 		return nil, err
 	}
 	// Add log event trigger with Contract details to CapabilitiesStore
-	respCh, err := s.triggers.InsertIfNotExists(req.TriggerID, func() (*logEventTrigger, chan capabilities.TriggerResponse, error) {
+	var respCh chan capabilities.TriggerResponse
+	respCh, err = s.triggers.InsertIfNotExists(req.TriggerID, func() (*logEventTrigger, chan capabilities.TriggerResponse, error) {
 		ctx, cancel := s.stopChan.NewCtx()
 		l, ch, err := newLogEventTrigger(ctx, cancel, s.lggr, req.Metadata.WorkflowID, reqConfig, s.logEventConfig, s.relayer)
 		s.wg.Add(1)
@@ -132,10 +131,6 @@ func (s *TriggerService) UnregisterTrigger(ctx context.Context, req capabilities
 
 // Start the service.
 func (s *TriggerService) Start(ctx context.Context) error {
-	if s.relayer == nil {
-		return errors.New("service has shutdown, it must be built again to restart")
-	}
-
 	return nil
 }
 
diff --git a/core/capabilities/triggers/logevent/service_test.go b/core/capabilities/triggers/logevent/service_test.go
index 1879a927e63..c2e75d89483 100644
--- a/core/capabilities/triggers/logevent/service_test.go
+++ b/core/capabilities/triggers/logevent/service_test.go
@@ -20,7 +20,7 @@ func TestLogEventTriggerEVMHappyPath(t *testing.T) {
 	th := testutils.NewContractReaderTH(t)
 
 	logEventConfig := logevent.Config{
-		ChainID:        th.BackendTH.ChainID.Uint64(),
+		ChainID:        th.BackendTH.ChainID.String(),
 		Network:        "evm",
 		LookbackBlocks: 1000,
 		PollPeriod:     1000,
@@ -45,7 +45,7 @@ func TestLogEventTriggerEVMHappyPath(t *testing.T) {
 	}, nil).Once()
 
 	// Create Log Event Trigger Service and register trigger
-	logEventTriggerService := logevent.NewLogEventTriggerService(logevent.Params{
+	logEventTriggerService := logevent.NewTriggerService(logevent.Params{
 		Logger:         th.BackendTH.Lggr,
 		Relayer:        relayer,
 		LogEventConfig: logEventConfig,
diff --git a/core/capabilities/triggers/logevent/store.go b/core/capabilities/triggers/logevent/store.go
index 0f8cebfab02..56e4a6f235b 100644
--- a/core/capabilities/triggers/logevent/store.go
+++ b/core/capabilities/triggers/logevent/store.go
@@ -51,11 +51,14 @@ func (cs *capabilitiesStore[T, Resp]) Write(capabilityID string, value *T) {
 }
 
 func (cs *capabilitiesStore[T, Resp]) InsertIfNotExists(capabilityID string, fn RegisterCapabilityFn[T, Resp]) (chan Resp, error) {
-	cs.mu.Lock()
-	defer cs.mu.Unlock()
-	if _, ok := cs.capabilities[capabilityID]; ok {
+	cs.mu.RLock()
+	_, ok := cs.capabilities[capabilityID]
+	cs.mu.RUnlock()
+	if ok {
 		return nil, fmt.Errorf("capabilityID %v already exists", capabilityID)
 	}
+	cs.mu.Lock()
+	defer cs.mu.Unlock()
 	value, respCh, err := fn()
 	if err != nil {
 		return nil, fmt.Errorf("error registering capability: %v", err)
diff --git a/core/capabilities/triggers/logevent/trigger.go b/core/capabilities/triggers/logevent/trigger.go
index 41dd8fabbc0..0d81e8f2a9a 100644
--- a/core/capabilities/triggers/logevent/trigger.go
+++ b/core/capabilities/triggers/logevent/trigger.go
@@ -63,7 +63,7 @@ func newLogEventTrigger(ctx context.Context,
 	contractReader, err := relayer.NewContractReader(ctx, jsonBytes)
 	if err != nil {
 		return nil, nil,
-			fmt.Errorf("error fetching contractReader for chainID %d from relayerSet: %v", logEventConfig.ChainID, err)
+			fmt.Errorf("error fetching contractReader for chainID %s from relayerSet: %v", logEventConfig.ChainID, err)
 	}
 
 	// Bind Contract in ContractReader
diff --git a/plugins/cmd/capabilities/log-event-trigger/main.go b/plugins/cmd/capabilities/log-event-trigger/main.go
index dc00ef59420..84ff8a73912 100644
--- a/plugins/cmd/capabilities/log-event-trigger/main.go
+++ b/plugins/cmd/capabilities/log-event-trigger/main.go
@@ -105,7 +105,7 @@ func (cs *LogEventTriggerGRPCService) Initialise(
 
 	// Set relayer and trigger in LogEventTriggerGRPCService
 	cs.config = logEventConfig
-	cs.trigger = logevent.NewLogEventTriggerService(logevent.Params{
+	cs.trigger = logevent.NewTriggerService(logevent.Params{
 		Logger:         cs.s.Logger,
 		Relayer:        relayer,
 		LogEventConfig: logEventConfig,