1.   A judicial investigation into his case ordered the arrest of a member of the national police.

2.   A lack of independent investigation into complaints.

3.   After a long investigation into the fire, faulty wiring was found to be the cause.

4.   An investigation into how he managed to escape so easily is now under way.

5.   An investigation into the crash found no evidence of engine failure - the problem was loss of power.

6.   But assisting her investigations into a perfectly natural death as if it were murder was little short of lunacy.