68 
area covered by the trespass; and, in case of fire, its origin 
with respect to forest-land boundaries; cover species or 
type, and size of lumber; and nature and extent of damage. 
The investigator should not be required to make this map, 
if it can be done by others, such as rangers in charge of 
suppression. When necessary on account of close ques¬ 
tions of boundary, the district forester will send an expert 
surveyor to make a transit survey. 
The court map .—The map to be presented in court should 
be on a scale large enough to be legible when hung up 
so that the jury can all see it at once, since it is much 
more effective when used in this way. It should be con¬ 
fined to the data essential for the purpose, but it should 
show this with the utmost clearness. Its legend should 
give also its “approximate scale,” and if angles of view 
are material, a statement that these are correct. Every 
care should then be used to see that they are correct. 
Any “trespass” or other designation on the original to 
which the defense could object as tending to prejudice 
the jury in advance must be omitted. 
As to land boundaries, the proclamation diagrams of the 
national forests can always be found in the biennial volume 
of the United States Statutes at Large, covering the year 
in which they were issued. Private land boundaries 
can be gotten from Forest Service status and verified and 
certified by the United States Land Office if desired. 
INVESTIGATION REPORT TO DISTRICT FORESTER. 
For all cases made the subject of law-enforcement in¬ 
vestigation. whether carried to court or not, a report in 
accordance with Form 618b must be made and forwarded 
to the district forester. This report is short and is the 
only one regularly required by this office to enable it to 
keep in record touch with the work. If the case is carried 
through the court by the investigating officer, this report 
will be complete; otherwise it will end where the case 
passed into the hands of the district law officer, or was 
dropped. 
