With ref to post #494:-

சிதறாத - referring here to evidence ( before a court,) which the judge considered to be reliable and not punctured with holes by the defence attorney in cross-examination etc.,

சான்றுகள் - evidence, oral as well as documentary and exhibits.

கண்டு - seen and examined.

கேட்டார்! - heard in hearing session.

அதிராகு - unprecedented.

பதறாத தூண் ஒத்தார் - refers here to the high stature of the accused person,
  கதறாத கட்சியினர் - the political party to which the accused belongs has been taken aback by the court decision. Previously they had never been in such position.