I will now ask you some questions about your arrests and imprisonment, i.e. if you have been arrested or imprisoned. Again, as I have said before, all of our discussion will be anonymous and confidential.
Literal question
In total, how many days have you spent in custody after being arrested fora drug-related offence in the last 12 months?
Interviewer instructions
If DD is unknown code 99 and for YY unknown code 9999