All just and proper expenses incurred in extinguishing forest or brush fires caused by a railroad shall be paid by such railroad; but the fact that such payment has been made shall not be admissible as evidence that such fire was so caused.
RSA 249:8
1913, 155:2. PL 250 :8. RL 300:8. 1951, 203:59 par. 8, eff. Sept. 1, 1951.