Pointed knives were banned in Soviet times, and blunt knives were not suitable for opening cans. We used pointed knives to cut bread, starting around 1993, when such knives appeared on the market.
To use a pointed knife in Soviet times, you had to get permission, as Rimma Kolevatova did when she received her brother's knife.
Probably, Askinazi did not have such permission and did not have a pointed knife. You can ask him. To clarify.
Moreover, Judge Novokreshchenov in an interview with Navig (the text is on the website) says that the tent was ripped open with an axe. He said this, perhaps, because no one from the Dyatlovo group had a permit to carry a knife. It was such a formal requirement. A living witness, Askinazi, can say more.
I think that POLCEI could put someone in jail for carrying a knife if a person was planning to commit a robbery, who was already approaching the victim, but was caught before that. Therefore, the policeman could check and arrest the bandit for having a bladed weapon and thus neutralize him before committing the crime.
It is surprising that the policeman in Serov did not make such claims against citizen Krivonischenko for a long sharp knife. He was probably too lazy to check his luggage.
The arrest and imprisoning could have saved Krivonischenko from death on the hike, just as Yudin's leg disease saved Yudin from death.