When you spend so much time around City Hall as a kid that the police officers on the Mayor’s security detail become your unofficial big brothers, it may be inevitable that you end up with a career tied to law enforcement.

It turned out that way for Robert Tucker. Having translated his early education at City Hall (where his mother was a part of the Koch administration) into a wealth of contacts at city agencies and an eight-year stint as the special assistant to Queens District Attorney Richard A. Brown, Tucker has now, at the tender age of 29, left the public sector to become the majority partner of a Manhattan private security concern.