Mr Dickson was speaking after trouble flared in the city – especially targeting the mainly Protestant Fountain estate – every night since the former Prime Minister’s death.
On Friday around 25 petrol bombs were thrown in the Fountain estate, while Police also came under attack as trouble continued over the weekend.
Stewart Dickson MLA said: “I welcome the news extra Police resources are to be deployed in Londonderry this week, especially as a protest event is expected at Free Derry Corner after her funeral.
“I would call on those taking part in planned protests in the area to stop and think about their actions. While many will disagree with her policies, a funeral is a time of mourning for family and friends and for all those who knew her and should be given the respect it deserves.
“There can never be any justification for the celebration of the death of another human and I totally condemn the actions of those in Londonderry, which have also led to attacks and violence on the doorsteps of others.