The crime figures out today show that crime is falling in all areas, except in sex crimes where it has RISEN by 8%. This is being explained without question as being due to "increased confidence" in the police.
Yes, in the year where we saw reports about the police's total failure to listen and investigate serial rapists John Warboys and Kirk Reid, it makes perfect sense that we would all feel so much more confident in the police 
The idea that there might actually be more rapes and assaults going on is not being countenanced anywhere AFAIK.
Can you imagine this being allowed to wash with an increase in burglaries? Or arson?