This has advantages both for bank robbers and for law enforcement. In urban areas the transportation infrastructure is more highly developed, especially where banks tend to cluster near retail shopping areas and commercial districts. Such banks are highly profitable targets for robbers, who are then afforded a number of potential escape routes. Law enforcement benefit by being able to respond more quickly, and the odds of catching a bank robber on or near the scene is higher than other types of crime. This is because most bank robberies are reported very quickly while the crime is in progress; most bank robberies occur during daylight hours, have multiple witnesses and with modern technology often produce photographic images that can be distributed and used immediately to canvass the local area. Consequently, many bank robbers are caught the same day. The clearance rate for bank robbery is among the highest of all crimes, at nearly 60%.