K.S.A. 60-407: General abolition of disqualifications and privileges of witnesses, and of exclusionary rules.

Except as otherwise provided by statute (a) every person is qualified to be a witness, and (b) no person has a privilege to refuse to be a witness, and (c) no person is disqualified to testify to any matter, and (d) no person has a privilege to refuse to disclose any matter or to produce any object or writing, and (e) no person has a privilege that another shall not be a witness or shall not disclose any matter or shall not produce any object or writing, and (f) all relevant evidence is admissible.