Traveling to Portugal with existing Schngene visa

[dalways]

Hi All
On behalf of a friend i have to ask this question as I am not a visa expert and need your help.
My friend who is Indian living in UK with his British Partner with UK residence permit.
He holds a Schngene visa under family member of british citizen issued by France which is valid till October 2017 and now he wants to got o Portugal. Is the visa still valid or need to apply for a fesh one.
any information will be helpful.
thank

[Casa]

Is it a multiple entry Schengen visa?

[dalways]

Yes it's a multi entry visa

[Casa]

In which case it should be OK for travel.

[dalways]

Thanks

[Cayos]

Yes, he can travel with this visa, however, if his Schengen visa states that he acquired it as a family member of EU national, he needs to be travelling either with his spouse and proof that they are married or with a good excuse why he is travelling without his EU family member. In most cases immigration officers don't look into it as long as the visa is valid, but sometimes they may stop travellers and investigate.