Judges 1:24

‘ And the spies saw a man come out of the city, and they said to him, “Show us, we pray you, the way in to the city, and we will deal with you with kindness”.'

The spies managed to capture a man who had left the city, innocent of the fact that an enemy was so close. Then he was taken for questioning. He was no doubt given two options, torture or a reward for his help. We do not know how soon he gave in but in the end he did.