Usually they will want to be let in to see the children. Social workers are more likely to say you must let them in. Actually, no government official has the right to enter your home without a search warrant, except in extreme situations, e.g. when there is screaming or gunfire inside. The whole issue of your rights and DCYF appear to exist in a parallel universe. They point out that district court judges almost always make the final orders in abuse and neglect cases.
Aggrieved people can petition the court for further relief, they say.
It will be best if you cooperate with us. You know you're a good parent and if you just show them they'll apologize and go away. DCYF is a master at using this gambit against you. Early on, social workers will give you bad marks for clothes on the floor, even in the kids' rooms or laundry room. If the house is immaculate, they'd probably note the home environment doesn't provide adequate stimulation.