违法乱纪 wéifǎ-luànjì
[break the law and principle;breach (violation) of law and disciplines;offences against law and discipline] 违反法令,破坏纪律
这是一种严重的违法乱纪行为
任斌武 《无声的浩歌》:“毫无疑问,这是一起地地道道的欺上瞒下,弄虚作假的违法乱纪事件。”