There had been 25 people - 13 in Hawke’s Bay and 12 in Tairāwhiti - had been arrested for a variety of offences including serious assault, destruction of property, disorder and theft.
Initially police held grave fears for up to 10 people they believed may have perished in the storm.
A week ago than 4,500 people were listed as not being able to be contacted by friends, neighbours or family, a week after the cyclone devastated parts of eastern coastline.
Sea and river searches were mounted to look for those feared washed away in the floods.
By the end of last week the number of those believed missing had been whittled down to 23.
Over the weekend it reduced further to eight with an announcement today there were just four people unaccounted for.