証拠 しょうこ隠滅 いんめつ
shōkoimmetsu

Noun

1. destruction of evidence

Yojijukugo
Law
証拠 しょうこ隠滅 いんめつどーすんのよ!普通 ふつう警察 けいさつ連絡 れんらくするもんでしょっ。
shōkoimmetsu dō sunnoyo! futsūwa kēsatsuni renraku suru monde sho'.
What does destroying evidence get you? The usual thing would be to contact the police, wouldn't it?