Lev Ponomaryov directs Russia's "For Human Rights" movement. He worked with many of the people who have been killed in similar circumstances.

If we take the cases of four political murders of democratic activists - all of them my friends - politicians Galina Starovoytova and Sergei Yushenkov, and journalists Anna Politkovskaya and Yuri Schekochikhin, the people who ordered the crimes have not been found. While in some cases the killer or accomplices to the crime are caught, it's virtually impossible to find those really behind the crime because of data lost by the investigation office. This time it's Stanislav Markelov, who worked in my office and was a friend of mine.

The investigation process in Russia is very weak. With ordinary criminals this goes unnoticed. But when there's a high-profile case, especially when we successfully insist on open hearings, it becomes obvious. It's very clear now, in the Politkovskaya murder case: the trial is falling apart because all the investigation's mistakes are out in the open.

Investigators are not used to working professionally; on the contrary, they're used to every piece of fabricated evidence being easily accepted by the court. Besides, when a case is political, when the authorities are involved even circumferentially, the authorities do everything to obstruct the investigation. It all adds up - the lack of professionalism on the part of the investigators and the involvement of power in political killings."

Another group which lies victim to impunity is that of the Russian army. Last year some 471 soldiers died in what are described as "non-combat deaths", many of which result in little investigation. Veronika Marchenko chairs the Mother's Right Foundation, a non-profit organisation which deals with the proper investigation of these deaths.

We are normal people and we understand that we can't raise the dead, and we can't win all the trials. When we don't win quickly, we are ready for a long fight in order to make the law prevail. Now, for instance, we are expecting such a fight in the case concerning the death of Ivan Krasheninnikov.

Ivan Krasheninnikov was drafted on 27 November 2005. On 11 December 2006 he was found dead in the cellar of his barracks hanging from a belt. Krul and Aflistov, two sergeants of military unit 35652, were charged with harassment causing grave consequences. During the entire trial, the Mother's Right Foundation tried to draw attention to the fact that there were conflicting medico-legal reports in the case papers. The independent experts (invited by our foundation), contrary to the state ones, claimed that Ivan was first strangled and then hanged. Therefore, the investigators either caught the first persons they came across, or tried to present the murderers as simple bullies.

The trial took two years. Finally, Krul and Aflistov got 18 months and 12 months on probation, respectively, which is less than the legal minimum for the crimes they were charged with. The court refused to issue a special ruling on the investigator, Merkushev, who irreparably flunked the investigation of Krasheninnikov's death.

The court decision is outrageous. The Russian state is yet to worry about facing the judge and the investigator in the European Court of Human Rights... Meanwhile, we'll keep on fighting."