While some have been attacked in their residences or on the streets, it is generally difficult for Black Tigers to successfully target politicians in such locations now. Politicians' residences are heavily guarded, and their movements are kept secret. When they do go out, it is generally in convoys comprising several vehicles, which confuses attackers as to which vehicle is carrying the targeted politician. In addition, these vehicles whiz by so fast that it doesn't afford the Black Tigers much opportunity. There is also a great deal of risk of detection for a suicide bomber loitering on a city street, since they are likely to be checked by policemen or soldiers.
Convoys also take different routes, which serves to lessen the chances of' attack as well.
However, election time offers suicide bombers a golden opportunity. The dates and times of rallies are public knowledge, with thousands of posters being plastered on walls everywhere announcing them. The names of prominent politicians who would be attending each rally are also prominently displayed on the posters. It is a simple matter for suicide bombers to mingle with the crowds at a rally, with thousands of people milling around, and the general din of music, firecrackers, speeches and slogans. With party thugs controlling events at rallies, police generally shy away from keeping a close watch on what is happening.