Appellant was charged and found guilty on two separate counts of the possession and sale of narcotics, knowing the heroin had been illegally imported into the United States.

Three errors are alleged:

(1) The court allowed a .government agent to remain in the courtroom when the informer testified.

(2) Entrapment as a matter of law.

(3) Alleged insufficiency of the evidence.

We find no merit in any point, and af- . firm.