[12] Deputy Chairman of the Interim Commission of the Verkhovna Rada of Ukraine on investigation of the theft of public funds in 2011-2014, when providing services of collecting hazardous hexachlorobenzene waste in Kalush district, Ivano-Frankivsk region; Deputy Member of the Permanent Delegation to the Parliamentary Assembly of the Black Sea Economic Cooperation Organization;[13] member of the inter-parliamentary relations with China.

[16] In 2004, she began specializing in investigative journalism, contributing to several Ukrainian online newspapers, including Ukrainska Pravda,[5] Livyi Bereh[5] and Obozrevatel.

In 2008, a judgment was obtained from the High Court of Justice in London after Obozrevatel refused to retract false and libelous statements in articles by Chornovol[17] alleging that Rinat Akhmetov was connected to criminal activity and violence.

[22] Other articles by Chornovol addressed the alleged organized crime background of then-President Viktor Yanukovych and reported on his lavish countryside property.

[5][6] According to a story in The New York Times, in August 2012 Chornovol "scaled the walls of Yanukovych's then residential compound, which includes 345 acres of forested hills along the Dnipro River and is called 'Mezhyhirya' after the park where it is situated, and spent nearly three hours wandering the property and taking photographs before being detained by security".

[15] Chornovol openly admits committing various petty crimes in the course of her political acts and investigations, including trespassing and defacing property (such as by spray painting and egg pelting), and encourages other activists to follow her lead in nonviolent resistance way.

[citation needed] In the first week of Euromaidan, Chornovol, protected by bicycle helmet, was present near the van suspected of conducting covert surveillance of protest leaders, and immediately stormed it (by smashing the roof window with a cobblestone and jumping in) in order to prevent destruction of evidence.

[5] On 1 December 2013, Chornovol was widely reported smashing windows at Kyiv City Hall in the course of protesters' attempts to seize the building.

[citation needed] As she later explained to journalist colleagues, storming and occupying city hall was necessary for warming activists from freezing temperatures (the building was used for this purpose from then on).

[citation needed] Chornovol unsuccessfully ran in the 2012 parliamentary election in the suburban Lviv Oblast constituency Horodok, representing the oppositional Batkivshchyna party.

The attack took place hours after Chernovol published an article on a posh suburban residence which she said was being built for Minister of Internal Affairs Vitaliy Zakharchenko.

[38] Chornovol's husband characterized the incident as attempted murder, saying "she was beaten with the intent to kill", and accused police investigators of downplaying the legal status of the crime.

[39] Chornovol believes the attack was ordered by president Viktor Yanukovych for her ongoing investigation into a new luxury mansion and palace he was building.

[40] Late on 25 December Chornovol was prepared for a series of reconstructive surgeries on her nose and right eye orbit, and was recovering from severe concussion.

[42] After the assault, Canadian physician Dr. Richard Hareychuk provided a first hand account of how he raised money for Chornovol through the Ukrainian community in Toronto, arranged for an interview for her on CBC Radio from Ukraine, and traveled to meet her on 17 January 2014.

[citation needed] On 22 December 2016, Tetiana Chornovol's bill 5129 was adopted,[56] which destroyed the scheme for obtaining extra profits by alternative energy companies created by the Klyuyev brothers during the Yanukovych government.

[61] Together with the chairman of the committee, Serhiy Pashynskyi, in 2015, to finance the operation of defense factories, initiated a bill on the special confiscation of Yanukovych's assets in the state budget in the form of bonds worth $1.5 billion, arrested in the banks of Ukraine after the Euromaidan.

Chornovol stated about the influence of such people from Yanukovych's environment as Andriy Portnov,[67] Serhiy Kurchenko,[68] and Oleksandr Onyshchenko[69] in order to prevent the confiscation of these assets.

[70] In appointing a new General Prosecutor, the group of Oleksandr Turchynov in the People's Front fraction, which member Chornovol is, initiated an agreement to support Yuriy Lutsenko's candidacy in exchange for a "special confiscation".

[citation needed] However, the fact of the confiscation of Yanukovych's assets was harshly criticized by a number of public anti-corruption organizations in Ukraine.

According to the agreement with the Luch Design Bureau received ATGW Stuhna and rockets — a contract of responsible storage was drawn up for Tetiana Chornovol.

She took part in the battles in Chernihiv, in the east Ukraine and in the defeat of the 6th tank regiment of the Russian Federation in the Brovary district of the Kyiv region.