Criminal Law and Procedure
Scope
Kansas Criminal Code offenses, culpability, defenses, and constitutional criminal procedure from investigation through trial.
Core rules
- K.S.A. 21-5202 defines culpable mental states: intentionally, knowingly, recklessly, and negligently. If no mental state is stated, recklessness may suffice unless the statute indicates otherwise.
- Homicide: first-degree murder includes intentional and premeditated killing and felony murder; second-degree murder is intentional killing without premeditation; involuntary manslaughter can rest on recklessness or criminal negligence.
- Self-defense under K.S.A. 21-5222 requires reasonable belief in imminent unlawful force; Kansas generally imposes no retreat duty before using force in a place one has a right to be, but deadly force rules are narrower.
- Procedure: stop needs reasonable suspicion; arrest needs probable cause; searches need warrants or an exception; custodial interrogation requires Miranda warnings; right to counsel attaches at critical stages.
Worked example
D fires a gun into an occupied car intending to scare the occupants but kills one. Intent to kill is absent, but the jury may convict of felony murder if the underlying felony is independent and inherently dangerous; alternatively, reckless homicide may fit. The mental state must be matched to the statute, not inferred from the result alone.
Traps
Mixing knowingly and recklessly; assuming felony murder needs intent to kill; forgetting the merger doctrine; and treating a traffic stop as an arrest requiring probable cause.