tamper

clear-cut evidence of tampering;

Don't tamper with my feelings.

tried to tamper with the decedent's will; tampering with the timing mechanism of the safe.

Two policemen were accused of tampering with the evidence.

he had no business tampering with social services.

someone tampered with the brakes of my car.

tamper with a jury.See Synonyms at interfere

The consumer removes a film overwrap, then takes a tamper-evidence tear strip off the top of the sliding door.