Well comrade, can we say what will communism be like right now? Can we say what it will be in an absolute terms? No we cannot.
We cannot because of several problems, one, nothing is an absolute, everything is a process of constant change and progress. And in terms of what it will look like we do not have examples on what this form will be, we are not close to a point of developing this advanced society. That being said we can speculate as did Marx and Engels did. Which they had just speculations on what it would be, guess work by geniuses but still guesswork. Marx had thought of two different ideas for currency, one is everything is free, take as needed, the other is an idea of labour time vouchers, so you put 4 hours labour into a job you get 4 hours labour worth of commodities. In terms of policing, can we say there will be no crime? Well I cannot say, property crime in terms of stealing personal property may still occur, murder, etc, will the conciousness of the people be elevated enough to overcome this because they live in surplus? We can only rely on guess work since advanced communism has never existed. Can there be communism when there are capitalist societies still around? My opinion is that Communism can only be attainable when there is an absent of opposition to working class power.
Its like asking a primative communist society tell you what fuedalism would look like, or a slave society inform you about capitalism.