Guardians of the Law are answerable to none?

Can common people ever get justice? Shocking to read the following headlines

"Top Cop get 6 months for Molesting a child.." , "Brutal Murderer, Kerala Cop gets life...", "Cops gets suspended for taking bribe..."

• Why is so little punishment given to a child molester ?
• How can a brutal murder by a cop given only life?
• For the guardians of law (cops and other public servants) it must be stricter, swifter and the quantum of punishment must be 10 times more severe.
• 19 years is ridiculous.