Police will have powers to frisk people they suspect of carrying lasers and those without reason to have them - such as educators, architects or astronomers - will be fined up to $5000.

NSW Premier Morris Iemma said today the Government would ban the most powerful laser pointers and make it a summary offence to carry any laser pointer without a lawful reason.

Class three and four laser pointers will be declared prohibited weapons and carrying them could attract a maximum penalty of 14 years' jail, he said.