Indiana Code Title 24. Trade Regulation § 24-6-3-9

Sec. 9. (a) The division of weights and measures, the division's agents, deputies, or inspectors, and the county and city inspectors of weights and measures may go into or upon without formal warrant any stand, place, building or premises, or may stop any vender, peddler, junk dealer, coal wagon, ice wagon, or any dealer, for the purpose of making the proper test and for the purpose of ascertaining the proper weights and measures of all commodities found therein or thereon.  Whenever the division, the division's agents, deputies, or inspectors, or the county and city inspectors of weights and measures find a violation of law relating to weights and measures, the individual shall cause the violator to be prosecuted.

(b) No person may molest, hinder or obstruct in any way the division of weights and measures, the division's agents, deputies, or inspectors, or any county or city inspector of weights and measures in the performance of official duties.