Law 93-121 of January, 27th, 1993, so- called “loi Neiertz” made it a specific offense to obstruct abortions. Therefore manifestations in front of hospitals are frequently not permitted. A well-known doctor and embryologist, Xavier Dor, was condemned and sentenced to prison several times because he prayed together with a few others in front of a hospital and obstructed legal abortions. At 83, his latest trial is on-going.
Source and further information: The Observatory's Report 2012 on Legal Restrictions Effecting Christians in Europe