"A prosecutor of Vilnius Regional Prosecutor's Office made the decision on 17 August to discontinue the pre-trial investigation as no actions having signs of criminal activities provided for in Article 295 of the Penal Code have been made," Rita Stundienė of the Prosecutor General's Office told BNS on Wednesday.
Article 295 of the Penal Code says that "a person who unlawfully installs or uses special equipment for the purpose of spying on a person, collecting information about a state or municipal institution, agency or an employee thereof, a political party, public organization or a member thereof, another legal entity or person shall be punished by a fine or by arrest or by imprisonment for a term of up to four years."
Stundienė added that the decision might be appealed to a higher-ranking prosecutor.
The investigation was launched on 22 June after prosecutors received a request by Raimundas Alekna, executive secretary of the Homeland Union–Lithuanian Christian Democrats.
The party then said in a statement that it discovered taping equipment inside a computer mouse and on a tree in the internal courtyard.