The conflict that occurs between an accused person and a tiger can best be described as character vs. another character. That is because in literature, character vs. character refers to a conflict in which two characters struggle against each other in either a physical altercation or figuratively. A character in this context can be either human, animal or other species.
The independent variable is the amount of alcohol. The dependant variable is the coordination skills. The skills depend and are affected by the amount of alcohol drunk.