tamper
/ˈtæmpə(r); `tæmpɚ/ v[Ipr]
~ with sth meddle or interfere with sth; alter sth without authority 干预或干涉某事; 乱弄某物; 擅自改动某事物
Someone has been tampering with the lock. 有人乱动过这把锁.
The records of the meeting had been tampered with. 会议记录已被人擅自改动.
(fig 比喻) tamper with (ie bribe) a jury 贿赂陪审团.