grabbed this the other day , only info i can find on it is it is a Chinese Police dagger , it partially retracts into the handle , locks up tight when opened , and has a very nice clean edges on it , serial numbered and Chinese star on the cover and blade , cover serial numbered to the  blade

i collect chinese AK47 and SKS rifles , mags ,accessories ,bayos ect ,,, so i seen it and had to have and impulse bought it , never seen one before , but figured if it was serial numbered it would likely be legit 

dont yell at me for not cleaning it yet , i was building a rifle i started last year , black Friday parts sales so i finally finished it , saved money for waiting for sale season

any info on the dagger?