How often should laws be updated?

Law is that branch of human sciences which regulate the life of the entire society ,so according to the   development which is happening on a daily basis , the law must follow these developments to achieve the  main goal which is : REGULATION OF THE SOCIETY AND EQUITY 

Lyngby modernize the laws according to the new phenomena of society and by the things contained in every age, because different ages and must update the law for it, I think it should be updated once every era even keep pace with the events of the times

Originally , the laws established by the legistor when they are abstract and general and placed for all pepole without distnction in order to regulate all matters of civil life economic ,social ,commercail and punitive , personal and political.......etc.

But when legislator sees that there are some laws need to intervene to amend it or chang it according to changing condation or variables on the overall climate of the stat.....In this case , the legislator must intervense to change the laws and in accordance with the puplic interest of the stste and society.

  countries should usually  update  its laws  even agree recent changes in all fields

Laws are changed according to the situation and societal conditions experienced by individuals .

Should the global community have a common platform to address the problems of human trafficking around the world?