diff --git a/common/logging/src/main/kotlin/net/corda/common/logging/Constants.kt b/common/logging/src/main/kotlin/net/corda/common/logging/Constants.kt
index bd81d9d6eb..aa5d86d5d7 100644
--- a/common/logging/src/main/kotlin/net/corda/common/logging/Constants.kt
+++ b/common/logging/src/main/kotlin/net/corda/common/logging/Constants.kt
@@ -9,4 +9,4 @@ package net.corda.common.logging
  * (originally added to source control for ease of use)
  */
 
-internal const val CURRENT_MAJOR_RELEASE = "4.8-SNAPSHOT"
+internal const val CURRENT_MAJOR_RELEASE = "4.8-SNAPSHOT"
\ No newline at end of file
diff --git a/detekt-baseline.xml b/detekt-baseline.xml
index 4398ca38b0..d6fdc13c8c 100644
--- a/detekt-baseline.xml
+++ b/detekt-baseline.xml
@@ -1162,6 +1162,7 @@
     <ID>MatchingDeclarationName:NamedCache.kt$net.corda.core.internal.NamedCache.kt</ID>
     <ID>MatchingDeclarationName:NetParams.kt$net.corda.netparams.NetParams.kt</ID>
     <ID>MatchingDeclarationName:NetworkParametersServiceInternal.kt$net.corda.core.internal.NetworkParametersServiceInternal.kt</ID>
+    <ID>MatchingDeclarationName:NotaryQueries.kt$net.corda.nodeapi.notary.NotaryQueries.kt</ID>
     <ID>MatchingDeclarationName:OGSwapPricingCcpExample.kt$net.corda.vega.analytics.example.OGSwapPricingCcpExample.kt</ID>
     <ID>MatchingDeclarationName:OGSwapPricingExample.kt$net.corda.vega.analytics.example.OGSwapPricingExample.kt</ID>
     <ID>MatchingDeclarationName:PlatformSecureRandom.kt$net.corda.core.crypto.internal.PlatformSecureRandom.kt</ID>
diff --git a/node-api/src/main/kotlin/net/corda/nodeapi/notary/NotaryQueries.kt b/node-api/src/main/kotlin/net/corda/nodeapi/notary/NotaryQueries.kt
new file mode 100644
index 0000000000..af97ba89c9
--- /dev/null
+++ b/node-api/src/main/kotlin/net/corda/nodeapi/notary/NotaryQueries.kt
@@ -0,0 +1,30 @@
+package net.corda.nodeapi.notary
+
+import net.corda.core.contracts.StateRef
+import net.corda.core.internal.notary.NotaryService
+import net.corda.core.serialization.CordaSerializable
+import java.time.Instant
+
+/**
+ * Implementations of queries supported by notary services
+ */
+class SpentStateQuery {
+    @CordaSerializable
+    data class Request(val stateRef: StateRef,
+                       val maxResults: Int,
+                       val successOnly: Boolean,
+                       val startTime: Instant?,
+                       val endTime: Instant?,
+                       val lastTxId: String?) : NotaryService.Query.Request
+
+    @CordaSerializable
+    data class Result(val spendEvents: List<SpendEventDetails>,
+                      val moreResults: Boolean): NotaryService.Query.Result
+
+    @CordaSerializable
+    data class SpendEventDetails(val requestTimestamp: Instant,
+                                 val transactionId: String,
+                                 val result: String,
+                                 val requestingPartyName: String?,
+                                 val workerNodeX500Name: String?)
+}
\ No newline at end of file