Case 003
The case
Important research papers were stolen from the cloning laboratory during a stormy night. Professor Bholu, one of the laboratory's scientists, became the main suspect. "I couldn't have stolen them," Professor Bholu said. "My wife Chinki and I have been at home all night. We haven't stepped outside since before the rain began." Chinki agreed with him. Detective Lomdi carefully examined the room. Within 180 seconds, she knew that the couple was lying.
Your question
How did Detective Lomdi know that Professor Bholu and Chinki had gone outside?