Why the need to add them to the contract ?
Oftentimes it is a lawyer's mere attempt to justify what he bills his clients, and incorporating redundancies in a contract might be the only "added value" he can point out for that purpose. This is more evident when asking to insert generic language such as "anti-bribery laws", since the essence of bribery contravenes the covenant of good faith and fair dealing on which all contracts are premised.
In other situations there might be a good reason for stating with reasonable specificity which laws are controlling for purposes of the contract. That specificity incorporates terms, conditions, and context that will make it easier to ascertain the parties' known rights and duties in the event of a dispute. By contrast, barely mentioning "data protection laws" is sloppy because such laws vary by jurisdiction and, when the parties are located in different jurisdictions, determining after the fact which laws are applicable is not always a trivial matter.