Which of the following is true concerning interviewing operators and witnesses at an accident scene?
1) Interview each individual separately, allowing each person to relate what he/she perceived during the accident episode.
2) Interview witnesses collectively so that one witness can fill in the gaps in the store of another, thus helping the officer understand the whole sequence at one time.
3) When interviewing a witness or operator, the officer should be prepare to take notes immediately while the witness is talking in order not to leave anything out of the investigative report.
4) None of the above