On all of those accasions I would have made a formal complaint as to why things were not followed up.
In fact I would write still to the cheif inspector to ask him when stealing/ABH/GBH came off the statute books as offences?
Pointing out that if these are still offences then why havent they been investigated by at least one officer?
Also ask which ombudsman do you make a complaint to about your local policing, or lack thereof?
Watch the bugger jump then lol