ALBERT C. RITCHIE, GOVERNOR.                  869

the time of the granting of said permit or thereafter, and said
permit in no event to be issued unless the need for the direc-
tion or danger signals to be erected in connection therewith is
clearly demonstrated to the satisfaction of the State Roads
Commission, and any person or corporation doing any of the
things prohibited by this section under and by virtue of a
permit issued to him or it by the State Roads Commission as
aforesaid shall be immune from prosecution for the commis-
sion of any acts under the terms of this section. For the
purpose of enforcing this section the presence or existence of
any advertisement or sign upon the public highway or upon
private property adjacent thereto shall constitute prima facie
evidence that said sign was painted, placed, fixed or erected by
direction or with the consent and approval of the party or
parties, his, its or their agent or representative in the State of
Maryland, whose name, business, vocation or merchandise is
advertised thereon.

Approved April 17, 1931.

CHAPTER 338.

AN ACT to repeal and re-enact, with amendments, Section
803 of Article 22 of the Code of Public Local Laws (1930
Edition), title "Washington County, " sub-title "Tax Col-
lector, " to permit the County Commissioners of Washington
County to designate the amount of the bond which the
County Tax Collector must furnish to the State.

SECTION 1. Be it enacted by the General Assembly of
Maryland, That Section803 of Article 22 of the Code of Public
Local Laws (1930 Edition), title "Washington County, " sub-
title "Tax Collector, " be and it is hereby repealed and re-
enacted, with amendments, to read as follows:

803. The Tax Collector of Washington County shall be-
fore he acts as such give bond to the State of Maryland in
such penalty as may be determined by the County Com-
missioners and not less than the amount of one hundred
thousand dollars, either with some bonding or trust com-
pany doing business in the State of Maryland, and author-
ized by the laws of Maryland to act as surety on official bonds