Most people, especially young women are told to avoid going out at night, because crimes are more likely to take place at night, especially in areas which are not well illuminated . In the dark the victim will often find it difficult to recognize the person who has assaulted or committted any crime on her or him, and it will be difficult to identify the person who committed the crime at a later date.
The lack of lighting makes it difficult for the victim to fight back, especially if the attacker is used to working in the dark.
Often before committing a crime, the criminals will cut the electric power supply to a house or other area, so that the persons residing in the area will not be able to spot them in advance and take action