I suppose it depends on what genes you are looking on and where are your SNPs located. If your gene is not expressed in gonads/germline, how can SNP be called as germline mutation?

germline cells

Article BRCA somatic and germline mutation detection in paraffin emb...

Abhijeet Singh thank you sir , so you mean to say we have to look for the expression pattern of that gene whether its expressed or not in gonadal tissues ?

Is it possible by using SNP rs id eg (rs61764370) can we find out is it germline or somatic snp??