1.   But investigators believe the still-lost cockpit recorder either lost its pinger or it has been silenced by being socked in muck.

2.   Fosco said WildCare investigators believed pseudo-rabies and distemper might both be involved.

3.   Investigators believe Dailey was a dupe for international drug smugglers.

4.   Investigators believe the bridge collapsed because the concrete was of poor quality.

5.   Investigators believe the crash was caused by pilot error.

6.   Most of the cases affected rural families where children slept near stored grain that investigators believed was contaminated with the fungus.

7.   The investigators believe that the answers to these questions are of fundamental importance for all of economics.

8.   Stress-relaxation tests are not performed as often as creep tests because many investigators believe they are less readily understood.

9.   Fire investigators believe the living room was doused with petrol and set alight.

10.   American investigators also believe that some of the suspects and witnesses they have been allowed to interview were thoroughly coached in Yemeni jails before meeting the FBI.