Illegal and forceful occupation of land

Land belong to us we have also cultivated it peacefully for 70 long year we purchased it through kebala that got motaion after 3 years .since 2010 grand son of seller tried encoraching that land forcefully .although we have filled an case in lrdc court of bihar prying to the court to restain him going there .and we have won that case .court has given the judgement in the favour mine in 2012 however that person still tried and encourching that land forcefully when ever we approch the poice staion with lrdc judgement they just don.t take any action neither the circle officer has taken any action we have every documents pertains to that property .now looking forward to know the correct remedies .should we go to patna highcourt for sake of getting direction through high court to the concern adminstaion to get it implemented .or else suggest some accurate remedies .can we also frame that individual in some criminal act .we immediately want to restrain him going there we have also file criminal case aganist him .kindly suggest