The police also ordered DNA, fingerprint, and paint analyses, while none produced results. «The fire had worked against us and destroyed a lot of the physical evidence,» Paju explained.
The investigation also looked at several thousand phone numbers that were serviced by the nearest cell tower around the time of the incident.
Paju said investigators had three theories but added she cannot go into detail as it might obstruct any potential future investigations. «Today proceedings have been closed on grounds of lack of purposefulness as we have nothing new to do add. Should a new piece of information come to light, we are prepared to reopen the case inside four years,» Paju said. The deadline is set by the fact that the crime has a five year expiry period.
Paju added that new information should be something not yet investigated: «Should new circumstances come to light, or should someone come forward and say they have knowledge of who perpetrated the crime.» In other words, all detectives can do is hope the arsonists will confess themselves or that they will hear testimony from someone with knowledge of the crime.
According to Paju, Vao villagers were very cooperative. «They were very interested in solving the arson. None of the people I talked to were negatively inclined towards residents of the refugee center,» Paju said. She added that villagers tried to establish whether the act had been committed by local people but could not find out more than the police.