/usr/include/dolfin/intersection/ is in libdolfin1.0-dev 1.0.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/dolfin/intersection/IntersectionOperator.h
/usr/include/dolfin/intersection/IntersectionOperatorImplementation.h
/usr/include/dolfin/intersection/MeshPrimitive.h
/usr/include/dolfin/intersection/Point_3_Bbox_3_intersection.h
/usr/include/dolfin/intersection/Point_3_Iso_Cuboid_3_intersection.h
/usr/include/dolfin/intersection/Point_3_Line_3_intersection.h
/usr/include/dolfin/intersection/Point_3_Point_3_intersection.h
/usr/include/dolfin/intersection/Point_3_Ray_3_intersection.h
/usr/include/dolfin/intersection/Point_3_Segment_3_intersection.h
/usr/include/dolfin/intersection/Point_3_Tetrahedron_3_intersection.h
/usr/include/dolfin/intersection/Point_3_Triangle_3_intersection.h
/usr/include/dolfin/intersection/PrimitiveIntersector.h
/usr/include/dolfin/intersection/PrimitiveTraits.h
/usr/include/dolfin/intersection/Segment_3_Segment_3_intersection.h
/usr/include/dolfin/intersection/Segment_3_Tetrahedron_3_intersection.h
/usr/include/dolfin/intersection/Tetrahedron_3_Bbox_3_intersection.h
/usr/include/dolfin/intersection/Tetrahedron_3_Tetrahedron_3_intersection.h
/usr/include/dolfin/intersection/Tree_Traits.h
/usr/include/dolfin/intersection/Triangle_3_Tetrahedron_3_do_intersect_SCK.h
/usr/include/dolfin/intersection/added_intersection_3.h
/usr/include/dolfin/intersection/cgal_includes.h
/usr/include/dolfin/intersection/dolfin_intersection.h
/usr/include/dolfin/intersection/predicates_init.h