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diff --git a/boost/geometry/algorithms/detail/is_valid/has_valid_self_turns.hpp b/boost/geometry/algorithms/detail/is_valid/has_valid_self_turns.hpp
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+++ b/boost/geometry/algorithms/detail/is_valid/has_valid_self_turns.hpp
@@ -0,0 +1,93 @@
+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2014, Oracle and/or its affiliates.
+
+// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
+
+// Licensed under the Boost Software License version 1.0.
+// http://www.boost.org/users/license.html
+
+#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_VALID_HAS_VALID_SELF_TURNS_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_VALID_HAS_VALID_SELF_TURNS_HPP
+
+#include <boost/geometry/core/point_type.hpp>
+
+#include <boost/geometry/policies/predicate_based_interrupt_policy.hpp>
+#include <boost/geometry/policies/robustness/segment_ratio_type.hpp>
+#include <boost/geometry/policies/robustness/get_rescale_policy.hpp>
+
+#include <boost/geometry/algorithms/detail/overlay/get_turn_info.hpp>
+#include <boost/geometry/algorithms/detail/overlay/turn_info.hpp>
+#include <boost/geometry/algorithms/detail/overlay/self_turn_points.hpp>
+
+#include <boost/geometry/algorithms/detail/is_valid/is_acceptable_turn.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+
+#ifndef DOXYGEN_NO_DETAIL
+namespace detail { namespace is_valid
+{
+
+
+template
+<
+    typename Geometry,
+    typename IsAcceptableTurn = is_acceptable_turn<Geometry>
+>
+class has_valid_self_turns
+{
+private:
+    typedef typename point_type<Geometry>::type point_type;
+
+    typedef typename geometry::rescale_policy_type
+        <
+            point_type
+        >::type rescale_policy_type;
+
+    typedef detail::overlay::get_turn_info
+        <
+            detail::overlay::assign_null_policy
+        > turn_policy;
+
+public:
+    typedef detail::overlay::turn_info
+        <
+            point_type,
+            typename geometry::segment_ratio_type
+                <
+                    point_type,
+                    rescale_policy_type
+                >::type
+        > turn_type;
+
+    // returns true if all turns are valid
+    template <typename Turns>
+    static inline bool apply(Geometry const& geometry, Turns& turns)
+    {
+        rescale_policy_type robust_policy
+            = geometry::get_rescale_policy<rescale_policy_type>(geometry);
+
+        detail::overlay::stateless_predicate_based_interrupt_policy
+            <
+                IsAcceptableTurn
+            > interrupt_policy;
+
+        geometry::self_turns<turn_policy>(geometry,
+                                          robust_policy,
+                                          turns,
+                                          interrupt_policy);
+
+        return !interrupt_policy.has_intersections;
+    }
+};
+
+
+}} // namespace detail::is_valid
+#endif // DOXYGEN_NO_DETAIL
+
+}} // namespace boost::geometry
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_VALID_HAS_VALID_SELF_TURNS_HPP