police helo's
Robbo,
presumably you would have to crew up several of those cheap Robbos with expensive crews as the one crew might be on another task!!
UK forces operate for significant periods of time over towns and cities, a lot of which is by night. Hence twins are essential and of course, more flexible in how they can be used compared to singles.
In the UK at least, public transport by night has required 2 engines since about '84 or '85 and police ops are public transport....albeit with some easements.
Therefore no point in even thinking of a Robbo or similar.