At that time, the 89 model was quite difficult to distinguish, but if you look closely, you will find its differences. For example, on the epaulettes, there are obvious differences between public security and army armed police; There are also public security armbands, which the armed police force does not have; Armed police have bars on their clothes and trousers at all times, which can be distinguished from the army. It can also be distinguished from a big hat. Armed police wear badges on their hats, while the army is a military badge.

From the above aspects, I think it is not difficult to distinguish.