The effect of the thief being caught as he tried to steal the belongings of the UAL students, they were currently having a sudden meeting through a video call with Professor Gilbert who was in London. They felt unsafe in the hotel where they were staying at the time, so the students tried to ask Professor Gilbert to find a new place to stay. The students were very sure that the criminal who had been caught had other accomplices and they were likely to come back. That was why they asked the professor to move to a new place of stay, especially since they would stay in Luxembourg for quite some time to complete their final project this semester.
When he received this bad news, Professor Gilbert didn't believe it right away. He checked with the hotel management first, and after getting valid confirmation from them, Professor Gilbert promised to find a new place to live for his students.