diff -r 06b8e2af4411 -r 6fbed849b4f4 qtmobility/src/contacts/requests/qcontactlocalidfetchrequest.cpp
--- a/qtmobility/src/contacts/requests/qcontactlocalidfetchrequest.cpp	Fri Jun 11 14:26:25 2010 +0300
+++ b/qtmobility/src/contacts/requests/qcontactlocalidfetchrequest.cpp	Wed Jun 23 19:08:38 2010 +0300
@@ -54,6 +54,9 @@
   manager-local contact ids (which may be retrieved by calling ids()), are updated, as well as if
   the overall operation error (which may be retrieved by calling error()) is updated.
 
+  Please see the class documentation of QContactAbstractRequest for more information about
+  the usage of request classes and ownership semantics.
+
   \ingroup contacts-requests
  */
 
@@ -67,6 +70,7 @@
 void QContactLocalIdFetchRequest::setFilter(const QContactFilter& filter)
 {
     Q_D(QContactLocalIdFetchRequest);
+    QMutexLocker ml(&d->m_mutex);
     d->m_filter = filter;
 }
 
@@ -75,6 +79,7 @@
 void QContactLocalIdFetchRequest::setSorting(const QList<QContactSortOrder>& sorting)
 {
     Q_D(QContactLocalIdFetchRequest);
+    QMutexLocker ml(&d->m_mutex);
     d->m_sorting = sorting;
 }
 
@@ -82,6 +87,7 @@
 QContactFilter QContactLocalIdFetchRequest::filter() const
 {
     Q_D(const QContactLocalIdFetchRequest);
+    QMutexLocker ml(&d->m_mutex);
     return d->m_filter;
 }
 
@@ -89,6 +95,7 @@
 QList<QContactSortOrder> QContactLocalIdFetchRequest::sorting() const
 {
     Q_D(const QContactLocalIdFetchRequest);
+    QMutexLocker ml(&d->m_mutex);
     return d->m_sorting;
 }
 
@@ -96,6 +103,7 @@
 QList<QContactLocalId> QContactLocalIdFetchRequest::ids() const
 {
     Q_D(const QContactLocalIdFetchRequest);
+    QMutexLocker ml(&d->m_mutex);
     return d->m_ids;
 }