sorry for delyed reply.
dear indepth interview is recommended for studying young criminals.
there are several reasons for it
1. most of those are less literate and are unable to fill a questionair
2. in interview facial gestures are also noted as qualitative data
3. u can shuffle the questions according to situation
4. it becomes difficult for the respondents to skip any question


see merits and demerits of interview and questionair to know further details while survy means for any one of these or both
regards

__________________
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