Question

The judge inquired, "How long was the culprit in prison the last time? "(Begin: The judge asked)

Answer 1

Answer: The judge asked that ,for how long the culprit has been in the prison last time

Explanation:you need to change it in the passive form In your teacher’s  perspective

Answer 2

Answer:

The judge asked that how long the culprit was in prison the last time.

Explanation:

The judge inquired, "How long was the culprit in prison the last time?"

So, we have to convert it into passive voice, alright.

Now, it can be written as - The judge asked that how long the culprit was in prison the last time.

Hope this helps....................

:)