diff --git a/projects/court-case-and-delius/src/main/kotlin/uk/gov/justice/digital/hmpps/api/model/conviction/Conviction.kt b/projects/court-case-and-delius/src/main/kotlin/uk/gov/justice/digital/hmpps/api/model/conviction/Conviction.kt
index 4c780c4e33..d0180052d9 100644
--- a/projects/court-case-and-delius/src/main/kotlin/uk/gov/justice/digital/hmpps/api/model/conviction/Conviction.kt
+++ b/projects/court-case-and-delius/src/main/kotlin/uk/gov/justice/digital/hmpps/api/model/conviction/Conviction.kt
@@ -32,7 +32,7 @@ data class Offence(
     val offenceCount: Long?,
     val tics: Long?,
     val verdict: String?,
-    val offenderId: Long,
+    val offenderId: Long?,
     val createdDatetime: LocalDateTime,
     val lastUpdatedDatetime: LocalDateTime,
 )
diff --git a/projects/court-case-and-delius/src/main/kotlin/uk/gov/justice/digital/hmpps/integrations/delius/service/ConvictionService.kt b/projects/court-case-and-delius/src/main/kotlin/uk/gov/justice/digital/hmpps/integrations/delius/service/ConvictionService.kt
index 8d33b4ef02..1600d95986 100644
--- a/projects/court-case-and-delius/src/main/kotlin/uk/gov/justice/digital/hmpps/integrations/delius/service/ConvictionService.kt
+++ b/projects/court-case-and-delius/src/main/kotlin/uk/gov/justice/digital/hmpps/integrations/delius/service/ConvictionService.kt
@@ -64,7 +64,7 @@ class ConvictionService(
             disposal?.custody?.toCustody(),
             court?.toCourt(),
             toLatestOrSentencingCourtAppearanceOf(),
-            orderManagers.map { it.toOrderManager() }
+            orderManagers.stream().map { it.toOrderManager() }.toList()
         )
 
     fun Event.toOffences(): List<Offence> {
@@ -122,7 +122,7 @@ class ConvictionService(
             offenceCount = offenceCount,
             tics = null,
             verdict = null,
-            offenderId = event.person.id,
+            offenderId = null,
             createdDatetime = created.toLocalDateTime(),
             lastUpdatedDatetime = updated.toLocalDateTime()
         )