Another iconic sign, and another personal favourite.

PROTECTED AREAS AND PROTECTED PLACES ACT
(CHAPTER 256)

Special powers in protected areas and protected places

9. Any person who attempts to enter or who is in a protected area or a protected place and who fails to stop after being challenged 3 times by an authorised officer to do so may be arrested by force, which force may, if necessary to effect the arrest, extend to the voluntary causing of death.

SINGLISH

This place cannot try enter one. If you kena stop by police and you still carry on, police can use force to catch. And if you kena injured or die not the police fault.