Generally there are three reasons for keeping suspects locked up: - When there is a worry that they will continue in criminal activities - When there is a wor

Generally there are three reasons for keeping suspects locked up: - When there is a worry that they will continue in criminal activities - When there is a worry that they might influence other suspects - When there is a worry that they might escape the country There is also a fourth one, which is usually not legitimate in democracies: - To make the suspect uncomfortable and more likely to plea guilty