statement given by him at a State Fire Marshal’s inquest. Defendant argues that his right against self-incrimination was violated because his presence was procured by a subpoena and, further, that he had taken prescription medication prior to giving the statement. The State argues that the defendant knowingly waived his right against self-incrimination, that his statement was made voluntarily, and therefore the tape recording of that inquest was properly admitted into evidence.
Ind.Code § 22-11-5-12 (Burns Supp.1982) gives the State Fire Marshal and his deputies the power to subpoena the attendance and testimony of witnesses relating to any matter under investigation. The powers granted to the State Fire Marshal are broad and sweeping but as Ind. Code § 22-11-5-21 points out, “... this act is necessary for the public safety, health, peace, and welfare.... ” There was no violation against the right against self-incrimination by compelling Napier’s presence by subpoena.
Defendant further argues that the statement given at the inquest should not have been admitted because he had taken medication at the time the statement was made. This question is controlled by a determination from all of the circumstances as to whether the statement was given voluntarily, and not through inducement, violence, threats or other improper influences so as to overcome the free will of the accused. Smith v. State, (1981) Ind., 419 N.E.2d 743; Battle v. State, (1981) Ind., 415 N.E.2d 39. The defendant took Valium four times a day, pursuant to a doctor’s prescription, in order to control spasms. This drug was taken regularly. The investigators at the fire marshal’s inquest asked the defendant about the drug’s effect:
“Mr. Rutherford: Do you feel in anyway (sic) that the medication you’re on today is affecting your answers or the truthfulness to anything you’re saying?
The record also shows that before the questioning, the defendant read and signed a printed waiver of his rights. The investigators also questioned him to ascertain whether he actually understood the implications of his waiver. There is no evidence supporting the defendant’s statement that the drugs affected him to such an extent that a statement was not knowingly and voluntarily made.
VI
Finally, Defendant alleges that the evidence is insufficient to sustain his convictions since there was only circumstantial evidence that merely established he had an opportunity to commit the crime.
This court does not reweigh the evidence or judge the credibility of witnesses and will consider only that evidence most favorable to the State and all reasonable inferences drawn therefrom. When there is substantial evidence of probative value to support each element of the offense, the finding of the trier of fact will not be disturbed. Jackson v. State, (1980) Ind., 402 N.E.2d 947, 948. It is also well settled that on review this Court does not have to find that circumstantial evidence is adequate to overcome every reasonable hypothesis of innocence but only that an inference may reasonably be drawn therefrom which supports the finding. Hall v. State, (1980) Ind., 405 N.E.2d 530, 535.
The defendant concedes that the State produced substantial evidence of probative value showing the fire was arson and that Jean Napier died as a result of the fire. However, he argues that there was insufficient evidence that he set the fire and killed his wife. Although the evidence was circumstantial and was in conflict in some respects, there was, nevertheless, sufficient evidence from which the jury could reasonably find or infer that the defendant did set the fire and did purposely kill his wife in so doing. There was testimony that the defendant and his wife argued loudly on each of two days preceding the fire and the defendant did not deny this. He admitted that they had a loud argument about 3:00 a.m., on the morning of the fire. There was testimony that the fire was set in the bed