SPECIAL PART
Chapter XXX. Offences against the Administration of Justice
Article 245. Whoever uses violence or unlawful threat with a purpose of influencing a witness, expert witness, translator prosecutor or the accused or consequently breaches personal inviolability of such a person
shall be subject to the penalty of deprivation of liberty for a term of between 3 months and 5 years.
Offences against administration of justice
Corruptly influencing a witness, obstructing or interfering with the attendance or testimony of a witness, retaliating against a witness for giving testimony or destroying, tampering with or interfering with the collection of evidence
EDIT.