XiNDiu, J.
Washington Township, in Franklin County, is co-extensive in territorial limits with the city of Hampton. At the general election in November, 1926, defendant appellant was duly elected constable of the township, and qualified as such on or about the third of January, 1927. Afterwards, the appellant was reappointed marshal of said city, and qualified according to law. The district court determined that the “office of constable” was vacated by appellant’s acceptance of the “office” of marshal. Two objections to this ruling are made by appellant, and will now be considered in their order.
I. It is said that the court below committed error in permitting the appellee, Fred P. Banker, to commence this action. In his application for such authorization, the relator stated, among other legal and statutory requirements, facts to show that he had an interest in the premises. Collateral attack was made on the court’s ruling extending this right, which, according to our previous decisions, cannot be done. State ex rel. West v. City of Des Moines, 96 Iowa 521; State ex rel. Harmis v. Alexander, 129 Iowa 538; State v. Des Moines C. R. Co., 135 Iowa 694. We said, in State ex rel. Harmis v. Alexander, supra:
“Leave of court was granted relator to bring action [in quo warranto], and such order is not subject to collateral attack. ’ ’
II. Principal claim for reversal is predicated by appellant upon the proposition that the “offices” of marshal and constable are not incompatible. Basis for this position is founded very largely upon the argument that there is no constitutional or statutory prohibition, and that . , n j? no inconsistency prevents the dual holding; ior it is said by appellant the two “offices” are similar in their duties, that the one does not interfere with nor is it subordinate to the other, and therefore considerations of public policy are not concerned. On the other hand, appellee insists that the principles announced in State ex rel. Crawford v. Anderson, 155 Iowa 271, are' controlling here.
Under review in State ex rel. Crawford v. Anderson, supra, was the question relating to the “incompatibility” of the duties