1. How many times has the investigator questioned/interrogated the criminal? 2. Did you see the bank robbery yesterday? 3. We haven't examined the crime scene yet. 4. How long has the forensic scientist been at the scene of the crime? 5. We did not find any footprints at the crime scene. 6. The investigator/detective has already interviewed all the witnesses. 7. Have you already passed the exam? 8. What exam did you pass yesterday? 9. Have you recognized the thief? 10. I haven't phoned my parents yet. 11. The field investigator has instructed the attesting witnesses twice. 12. Has the robber been caught yet? - Yes, he was caught two hours ago, but he hasn't been interrogated yet. 13. Where did you find these cigarette butts? 14. The victim has already been given first aid. 15. We've just received a report of an arson attack. 16. The robber got into the car and stole the valuables. 17. Have you already visited the crime scene? 18. Who did you see in the yard when you went for a walk? 19. How long have you known your neighbours? 20. We didn't hear anything suspicious last night.