Last year, some researchers from Cardiff University stole headlines from the Office for National Statistics by publishing data of Accident and Emergency admissions on the day before the ONS released its data on violent crime. They claimed that the fall in violence was due to alcohol becoming less affordable, despite the fact that violent crime had been falling since 1995.
This year, they did the same thing again. I believe this is called 'seizing the narrative'. I written about it for the Spectator - do have a read.