I love how little integrity journalists have. All they had to do was ask themselves why such a manual would exist. Well, for starters, police do need training to ride their bikes. Most people don;t ride bikes beyond childhood and when they start again as adults they tend to be kind of crap at it. Secondly, liability. If I'm assigned bicycle duty and then get hit, if I wasn't trained adequately I would be owed some serious compensation.
Sure people don't need to be taught how to ride a damn bike. People operating in a police capacity, how may have to chase criminals at speed, and who have to spend all day riding in cities probably do need some training.
I met some local bike cops the other day and they could have used some serious training. I actually felt bad for them, that's how uncomfortable they looked. All four we're young and fairly fit looking. The two female cops were actually stronger and more assertive riders than the guys. Still, I did worry a little about their safety.