When there are two or more sides to an issue and the judgement favour one, the other(s) may feel bad. A judge can take cognisance of the evidences produced, the witness statements on oath, and sometimes the convincing circumstantial evidences. Then he has to rely or refer to precedents etc. After all this only a judge passes the order.
For outsiders not party to the case and court proceedings, it will be mostly prejudiced personal opinion. Our opinion could due to our personal convincing and conscience, mass psychology on a matter, opinion in media and even hearsay. Many times we may not be able to make out the real truth, unless we ourselves are witnesses to what happened.
In public cases the Public prosecutor ( the actual designations may vary) is responsible to present the case on behalf of the public(government/police). The strength of that side will depend upon the evidence and witness collected and presented in a coherent way by the Police and public prosecutor.
Also it will be the responsibility of the PP to apprise court if he fears that witness may be influenced, evidence destroyed or tampered with
Some cases may fail to convict the accused for want of undisputable convincing evidence. But there will be further levels of appeal. Just because the judgement came against our expectation should not mean that it is wrong.
Even when aberrations happen here and there, it is still the law that ultimately protects and takes care of the weak and punishes the guilty. If as public there is some doubt or confusion in the minds of people, and they have knowledge of the facts and truth, it is their duty to collect proper evidence, witness and also help the PP and police to the maximum extent of making the case a watertight one so that the real guilty is punished. If there are some loopholes in any law, then the [people and their representative legislators and parliament members should take up and enact remedies.
Our system is such that when even the accused is a poor man and not able to engage a lawyer, the court arranges a lawyer to him for making his defence. So let us not become desperate and spread confusion in public mind and shake the confidence and faith vast majority has on judiciary and courts of law.
Let us keep faith on ourselves and work sincerely, not leave everything to fate.