-Answer n.1 :- ( Is crime a voluntary behavior? )
yes , according to its criminological concept ,for the act to be a crime ,it must meet the following conditions :-
A-the act must be done by a person of competent age.
B-the act must be voluntary ,and the person who does it must also be free from certain forms of compulsion.
C-the act must be intentional.



Answer n.2 :- ( write about victimless cirmes..)
A victimless crime is an offense that is consensual and lacks a complaining participant .
it might be more accurate to refer to victimless crimes as crimes without complainants, because some observers question the idea that there is no victim of crimes such as (drug use,gambling,and prostitution)



Answer n.3 :- (what are Mala in se and Mala prohibta ? )
A-Mala in se means that crime is an act that violates the basic values and beliefs of society. As <murder ,rape,assault>
B-Mala prohibta means a crime that the law ban it . As <marijuana use , gambling >