decis execut committe decemb bring forc implement convent greec sch rev execut committe regard articl convent implement schengen agreement regard articl access agreement sign greec novemb conjunct joint declar articl final act aforesaid agreement regard decis octob bring forc convent implement schengen agreement greec sch rev regard report ad hoc committe greec sch rev regard ad hoc committe greec report confirm polit resolv execut committe octob bring schengen convent fulli forc greec express decis sch rev recognis acknowledg greec satisfi requir full applic schengen convent field visa polic judici cooper fight drug traffick schengen inform system data protect greec made consider progress airport adapt secur extern border account schengen requir decid greec notifi contract parti consid satisfi schengen requir secur extern maritim land border check person greec intern border lift execut committe find basi review visit ad hoc committe requir ensur schengen standard secur extern maritim land border greec satisfi fulfil requir relat manpow level materi resourc train border check surveil servic coordin depart concern examin basi visit improv area maritim surveil strategi flexibl deploy mobil unit applic articl convent demonstr present documentari evid execut committe decis end berlin decemb chairman schapper