Who prosecutes election-related criminal offences?

Lithuania
Constitutionof the Republic of Lithuania
Source:http://www3.lrs.lt/home/Konstitucija/Constitution.htm
Article 118 A pre-trial investigation shallbe initiated and directed, and prosecution on behalf of the State shall beupheld by a prosecutor.
Incases established by law, the prosecutor shall defend the rights and legitimateinterests of the person, society and the State.
Whenperforming his functions, the prosecutor shall be independent and shall obeyonly the law.
TheProsecutor’s Office of the Republic of Lithuania shall be the Office of theProsecutor General and territorial prosecutors’ offices.
TheProsecutor General shall be appointed and dismissed by the President of theRepublic with the approval of the Seimas.
Theprocedure for the appointment and dismissal of prosecutors and their statusshall be established by law.
TheLaw on the Public Prosecutor’s Office
Source:http://www.prokuraturos.lt/LegalActs/tabid/186/Default.aspx
Article 2. 1. The public prosecutor's officeshall be a state institution performing the functions established by theConstitution of the Republic of Lithuania, this Law or other laws. The publicprosecutor's office shall help ensure lawfulness and assist courts in theadministration of justice.
2.The public prosecutor's office shall, on the grounds and in accordance with theprocedure established by law:
1)organise and lead pre-trial investigation;
2)conduct pre-trial investigation or individual actions of pre-trialinvestigation;
3)control the activities of pre-trial investigation officers in criminalproceedings;
4)prosecute on behalf of the State in criminal proceedings;