diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleTechIdCollectionPredicate.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleTechIdCollectionPredicate.java
index 1cb0ce2a4aae3e209342129a7fe7735ca40c11c5..a5e4a1d745137a3b64b8e1793f146110d00dccdf 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleTechIdCollectionPredicate.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleTechIdCollectionPredicate.java
@@ -37,9 +37,14 @@ public class SampleTechIdCollectionPredicate extends
         DelegatedPredicate<List<SampleOwnerIdentifier>, List<TechId>>
 {
 
+    public SampleTechIdCollectionPredicate(boolean isReadAccess)
+    {
+        super(new SampleOwnerIdentifierCollectionPredicate(isReadAccess));
+    }
+
     public SampleTechIdCollectionPredicate()
     {
-        super(new SampleOwnerIdentifierCollectionPredicate(true));
+        this(true);
     }
 
     @Override
diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleUpdatesCollectionPredicate.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleUpdatesCollectionPredicate.java
index 3c51be158d2f7fc5c97819a86cd154077b050103..ddfc654ce3a8010d1d6812d53ce1ef640a0c8b49 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleUpdatesCollectionPredicate.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleUpdatesCollectionPredicate.java
@@ -19,9 +19,9 @@ package ch.systemsx.cisd.openbis.generic.server.authorization.predicate;
 import java.util.ArrayList;
 import java.util.List;
 
+import ch.systemsx.cisd.common.exceptions.Status;
 import ch.systemsx.cisd.openbis.common.conversation.context.ServiceConversationsThreadContext;
 import ch.systemsx.cisd.openbis.common.conversation.progress.IServiceConversationProgressListener;
-import ch.systemsx.cisd.common.exceptions.Status;
 import ch.systemsx.cisd.openbis.generic.server.authorization.IAuthorizationDataProvider;
 import ch.systemsx.cisd.openbis.generic.server.authorization.RoleWithIdentifier;
 import ch.systemsx.cisd.openbis.generic.server.authorization.annotation.ShouldFlattenCollections;
@@ -49,9 +49,10 @@ public class SampleUpdatesCollectionPredicate extends AbstractPredicate<List<Sam
 
     public SampleUpdatesCollectionPredicate()
     {
-        sampleTechIdCollectionPredicate = new SampleTechIdCollectionPredicate();
+        this.sampleTechIdCollectionPredicate = new SampleTechIdCollectionPredicate(false);
         this.spacePredicate = new SpaceIdentifierPredicate();
-        sampleOwnerIdentifierCollectionPredicate = new SampleOwnerIdentifierCollectionPredicate();
+        this.sampleOwnerIdentifierCollectionPredicate =
+                new SampleOwnerIdentifierCollectionPredicate(false);
     }
 
     @Override
diff --git a/openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleOwnerIdentifierPredicateTest.java b/openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleOwnerIdentifierPredicateTest.java
index 2cadacebdc0c160ecaf75715b37a1ce619dd06f2..c760e53e00f6332edbc3e24ea830d2b4f0ae2aaa 100644
--- a/openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleOwnerIdentifierPredicateTest.java
+++ b/openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleOwnerIdentifierPredicateTest.java
@@ -23,7 +23,6 @@ import org.testng.annotations.Test;
 import ch.systemsx.cisd.common.exceptions.Status;
 import ch.systemsx.cisd.openbis.generic.server.authorization.AuthorizationTestCase;
 import ch.systemsx.cisd.openbis.generic.server.authorization.RoleWithIdentifier;
-import ch.systemsx.cisd.openbis.generic.server.authorization.predicate.SampleOwnerIdentifierPredicate;
 import ch.systemsx.cisd.openbis.generic.shared.dto.PersonPE;
 import ch.systemsx.cisd.openbis.generic.shared.dto.identifier.SampleOwnerIdentifier;
 import ch.systemsx.cisd.openbis.generic.shared.dto.identifier.SpaceIdentifier;
@@ -84,7 +83,7 @@ public class SampleOwnerIdentifierPredicateTest extends AuthorizationTestCase
     }
 
     @Test
-    public void testNotAllowedDatabaseInstance()
+    public void testGenericAllowedDatabaseInstance()
     {
         SampleOwnerIdentifierPredicate predicate = new SampleOwnerIdentifierPredicate();
         PersonPE person = createPerson();
@@ -95,14 +94,12 @@ public class SampleOwnerIdentifierPredicateTest extends AuthorizationTestCase
 
         Status status = predicate.evaluate(person, roles, identifier);
 
-        assertEquals(true, status.isError());
-        assertEquals("User 'megapixel' does not have enough privileges to read "
-                + "from database instance 'DB2'.", status.tryGetErrorMessage());
+        assertEquals(Status.OK, status);
         context.assertIsSatisfied();
     }
 
     @Test
-    public void testAllowedGroup()
+    public void testAllowedSpace()
     {
         SampleOwnerIdentifierPredicate predicate = new SampleOwnerIdentifierPredicate();
         PersonPE person = createPerson();
@@ -119,7 +116,7 @@ public class SampleOwnerIdentifierPredicateTest extends AuthorizationTestCase
     }
 
     @Test
-    public void testNotAllowedGroup()
+    public void testNotAllowedSpace()
     {
         SampleOwnerIdentifierPredicate predicate = new SampleOwnerIdentifierPredicate();
         PersonPE person = createPerson();
diff --git a/openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleUpdatesCollectionPredicateTest.java b/openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleUpdatesCollectionPredicateTest.java
index d401f4bfd35a3702179a5d5bb167ef0892ddbad4..d5e51444c3064b4d2e4305ab9b1959568c309be9 100644
--- a/openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleUpdatesCollectionPredicateTest.java
+++ b/openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/server/authorization/predicate/SampleUpdatesCollectionPredicateTest.java
@@ -99,8 +99,8 @@ public class SampleUpdatesCollectionPredicateTest extends AuthorizationTestCase
                 predicate.evaluate(createPerson(), createRoles(false), Arrays.asList(sampleWithId,
                         sampleWithIdAndExperiment, sampleWithIdAndIdentifer));
 
-        assertEquals("ERROR: \"User 'megapixel' does not have enough privileges to read "
-                + "from database instance 'DB2'.\"", result.toString());
+        assertEquals("ERROR: \"User 'megapixel' does not have enough privileges to modify "
+                + "database instance 'DB2'.\"", result.toString());
         context.assertIsSatisfied();
     }