Truth may be hidden by many ways like with force or money and corruption or any illegal way.
but we see that the lair are free in their ways and they have no bound or limit..
Liars have much supports while truth may have few or not at all.
Here i give you advice that if you know that the person or group is on wrong and illegal way and they tell lie so reject them..
Do not give any support to wrong and lairs but you have to raise your voice against them.
If there is need to right people and they are weak, so support them is your responsibility and protect them to tell truth.