569.020. 1. A person commits the crime of robbery in the first degree when he forcibly steals property and in the course thereof he, or another participant in the crime,
(1) Causes serious physical injury to any person; or
(2) Is armed with a deadly weapon; or
(3) Uses or threatens the immediate use of a dangerous instrument against any person; or
(4) Displays or threatens the use of what appears to be a deadly weapon or dangerous instrument.
2. Robbery in the first degree is a class A felony.
(L. 1977 S.B. 60)