Goa Illegal Fishing

There is large scale trawlers fishing illegally within 5 kms on everyday basis in Zuari river inspite N number of letters as well as phone calls to fishers control room and coastal security police station at harbour, Vasco. What is the use of  the office of secretary (fisheries) existence? So also director fisheries? And also the office of the Minister of Fisheries including the office of Goa Coastal Police? Is this the way they are going to give service to people where all trust is lost?