witness tampering
noun /ˈwɪtnəs tæmpərɪŋ/
/ˈwɪtnəs tæmpərɪŋ/
(especially British English) (also witness intimidation
[uncountable] /ˌwɪtnəs ˌɪntɪmɪˈdeɪʃn/
/ˌwɪtnəs ˌɪntɪmɪˈdeɪʃn/
especially North American English)- the illegal act of trying to make somebody change their evidence or not give evidence in a criminal trial
- They faced charges of making false statements and witness tampering.