diff --git a/src/main/java/org/caosdb/server/jobs/core/CheckDatatypePresent.java b/src/main/java/org/caosdb/server/jobs/core/CheckDatatypePresent.java
index 9ea7d4b3867b781ead42a50b23b5a7befff048f9..dd87d5298365a4b95abc52c66c17823c5c52687a 100644
--- a/src/main/java/org/caosdb/server/jobs/core/CheckDatatypePresent.java
+++ b/src/main/java/org/caosdb/server/jobs/core/CheckDatatypePresent.java
@@ -23,6 +23,7 @@
 package org.caosdb.server.jobs.core;
 
 import java.util.List;
+import org.apache.shiro.authz.AuthorizationException;
 import org.caosdb.server.database.exceptions.EntityDoesNotExistException;
 import org.caosdb.server.database.exceptions.EntityWasNotUniqueException;
 import org.caosdb.server.datatype.AbstractCollectionDatatype;
@@ -97,13 +98,15 @@ public final class CheckDatatypePresent extends EntityJob {
         // finally, no data type
         throw ServerMessages.PROPERTY_HAS_NO_DATATYPE;
       }
-
     } catch (final Message m) {
       if (m == ServerMessages.ENTITY_DOES_NOT_EXIST) {
         getEntity().addError(ServerMessages.UNKNOWN_DATATYPE);
       } else {
         getEntity().addError(m);
       }
+    } catch (AuthorizationException exc) {
+      getEntity().addError(ServerMessages.AUTHORIZATION_ERROR);
+      getEntity().addInfo(exc.getMessage());
     } catch (final EntityDoesNotExistException exc) {
       getEntity().addError(ServerMessages.UNKNOWN_DATATYPE);
     } catch (final EntityWasNotUniqueException exc) {
@@ -152,8 +155,8 @@ public final class CheckDatatypePresent extends EntityJob {
     }
   }
 
-  private void assertAllowedToUse(final EntityInterface datatype) throws Message {
-    checkPermission(datatype, EntityPermission.USE_AS_DATA_TYPE);
+  private void assertAllowedToUse(final EntityInterface datatype) {
+    datatype.checkPermission(EntityPermission.USE_AS_DATA_TYPE);
   }
 
   private void checkIfOverride() throws Message {
diff --git a/src/main/java/org/caosdb/server/jobs/core/CheckParValid.java b/src/main/java/org/caosdb/server/jobs/core/CheckParValid.java
index 4e6b097e66bf2e844cad34ae22f45eedf1b6cd67..d3b28bd5f158b767469e6d7fcc3cebe9fa75edb8 100644
--- a/src/main/java/org/caosdb/server/jobs/core/CheckParValid.java
+++ b/src/main/java/org/caosdb/server/jobs/core/CheckParValid.java
@@ -23,6 +23,7 @@
 package org.caosdb.server.jobs.core;
 
 import com.google.common.base.Objects;
+import org.apache.shiro.authz.AuthorizationException;
 import org.caosdb.server.database.exceptions.EntityDoesNotExistException;
 import org.caosdb.server.database.exceptions.EntityWasNotUniqueException;
 import org.caosdb.server.entity.Affiliation;
@@ -118,13 +119,16 @@ public class CheckParValid extends EntityJob {
             }
           }
 
-          addError(parent, ServerMessages.ENTITY_DOES_NOT_EXIST);
+          parent.addError(ServerMessages.ENTITY_DOES_NOT_EXIST);
         } catch (final Message m) {
-          addError(parent, m);
+          parent.addError(m);
+        } catch (AuthorizationException e) {
+          parent.addError(ServerMessages.AUTHORIZATION_ERROR);
+          parent.addInfo(e.getMessage());
         } catch (final EntityDoesNotExistException exc) {
-          addError(parent, ServerMessages.ENTITY_DOES_NOT_EXIST);
+          parent.addError(ServerMessages.ENTITY_DOES_NOT_EXIST);
         } catch (final EntityWasNotUniqueException exc) {
-          addError(parent, ServerMessages.ENTITY_NAME_DUPLICATES);
+          parent.addError(ServerMessages.ENTITY_NAME_DUPLICATES);
         }
       }
     }
@@ -191,12 +195,7 @@ public class CheckParValid extends EntityJob {
     throw ServerMessages.AFFILIATION_ERROR;
   }
 
-  private void assertAllowedToUse(final EntityInterface entity) throws Message {
-    checkPermission(entity, EntityPermission.USE_AS_PARENT);
-  }
-
-  private void addError(final EntityInterface parent, final Message m) {
-    parent.addError(m);
-    parent.setEntityStatus(EntityStatus.UNQUALIFIED);
+  private void assertAllowedToUse(final EntityInterface entity) {
+    entity.checkPermission(EntityPermission.USE_AS_PARENT);
   }
 }
diff --git a/src/main/java/org/caosdb/server/jobs/core/CheckPropValid.java b/src/main/java/org/caosdb/server/jobs/core/CheckPropValid.java
index 112692c89a403366eb9eeb02d32355982a96a236..eeea52b85b9c1629b426660020c7e65f0e4b96ef 100644
--- a/src/main/java/org/caosdb/server/jobs/core/CheckPropValid.java
+++ b/src/main/java/org/caosdb/server/jobs/core/CheckPropValid.java
@@ -138,17 +138,10 @@ public class CheckPropValid extends EntityJob {
 
     // process names
     appendJob(ProcessNameProperties.class);
-    // final ProcessNameProperties processNameProperties = new
-    // ProcessNameProperties();
-    // processNameProperties.init(getMode(), getEntity(), getContainer(),
-    // getTransaction());
-    // getTransaction().getSchedule().add(processNameProperties);
-    // getTransaction().getSchedule().runJob(processNameProperties);
-
   }
 
-  private void assertAllowedToUse(final EntityInterface property) throws Message {
-    checkPermission(property, EntityPermission.USE_AS_PROPERTY);
+  private void assertAllowedToUse(final EntityInterface property) {
+    property.checkPermission(EntityPermission.USE_AS_PROPERTY);
   }
 
   private static void deriveOverrideStatus(final Property child, final EntityInterface parent) {
diff --git a/src/main/java/org/caosdb/server/jobs/core/CheckRefidValid.java b/src/main/java/org/caosdb/server/jobs/core/CheckRefidValid.java
index f19424b127feb3273571a7826bf05382299ea58a..645f87d0b2eb0bfc045eb3d4237a40b702c044a3 100644
--- a/src/main/java/org/caosdb/server/jobs/core/CheckRefidValid.java
+++ b/src/main/java/org/caosdb/server/jobs/core/CheckRefidValid.java
@@ -24,6 +24,7 @@
  */
 package org.caosdb.server.jobs.core;
 
+import org.apache.shiro.authz.AuthorizationException;
 import org.caosdb.server.database.exceptions.EntityDoesNotExistException;
 import org.caosdb.server.database.exceptions.EntityWasNotUniqueException;
 import org.caosdb.server.datatype.CollectionValue;
@@ -71,13 +72,13 @@ public class CheckRefidValid extends EntityJob implements Observer {
       }
     } catch (final Message m) {
       getEntity().addError(m);
-      getEntity().setEntityStatus(EntityStatus.UNQUALIFIED);
+    } catch (AuthorizationException exc) {
+      getEntity().addError(ServerMessages.AUTHORIZATION_ERROR);
+      getEntity().addInfo(exc.getMessage());
     } catch (final EntityDoesNotExistException e) {
       getEntity().addError(ServerMessages.REFERENCED_ENTITY_DOES_NOT_EXIST);
-      getEntity().setEntityStatus(EntityStatus.UNQUALIFIED);
     } catch (final EntityWasNotUniqueException e) {
       getEntity().addError(ServerMessages.REFERENCE_NAME_DUPLICATES);
-      getEntity().setEntityStatus(EntityStatus.UNQUALIFIED);
     }
   }
 
@@ -139,8 +140,8 @@ public class CheckRefidValid extends EntityJob implements Observer {
     }
   }
 
-  private void assertAllowedToUse(final EntityInterface referencedEntity) throws Message {
-    checkPermission(referencedEntity, EntityPermission.USE_AS_REFERENCE);
+  private void assertAllowedToUse(final EntityInterface referencedEntity) {
+    referencedEntity.checkPermission(EntityPermission.USE_AS_REFERENCE);
   }
 
   @Override