triedorpunished againforanoffence forwhichtheyhavealready beenfinally convicted oracquitted inaccordance withthelawandpenalprocedure oftheState concerned. Article 19 1.Migrant workers andmembers oftheirfamilies shallnotbeheldguilty of anycriminal offence onaccount ofanyactoromission thatdidnotconstitute a criminal offence undernational orinternational lawatthetimewhenitwas committed, norshall aheavier penalty beimposed thantheonethatwasapplicable atthetimewhenthecriminal offence wascommitted. If,subsequent tothe commission oftheoffence, provision ismadebylawfortheimposition ofalighter penalty, theyshallbenefit thereby. 2.Humanitarian considerations related tothestatus ofmigrant workers, in particular withrespect totheirrightofresidence orwork,should beconsidex:ed inimposing asentence foracriminal offence committed bymigrant workers or members oftheirfamilies. Article 20 1.Migrant workers andmembers oftheirfamilies shallnotbeimprisoned merely ontheground offailure tofulfil acontractual obxigation. 2.Theyshallnotbedeprived oftheirauthorization ofresidence orwork permit oreEpelled merely ontheground offailure tofulfil anobligation arising outofaworkcontract unlessfulfilment ofthatobliqation constitutes acondition forsuchauthorization orpermit. - /... L-13- Article 21 Itshallbeunlawful foranyone, otherthanapublicofficial dulyauthorized bylaw,toconfiscate, destroy orattempt todestroy identity documents, documents authorizing entrytoorstay,residence orestablishment inthenational territory orworkpermits. Noauthorized confiscation ofsuchdocuments shalltakeplace without delivery ofadetailed receipt. Innocaseshallitbepermitted to destroy thepassport orequivalent document ofmigrant workers ormembers oftheir families. Article 22 1.Migrant workers andmembers oftheirfamilies shallnotbesUbject to measures ofco~lective expulsion. Eachcaseofexpulsion shallbeexamined and decided individually. 2.Migrant workers andmembers oftheirfamilies maybeexpelled fromthe territory ofaStatePartyonlyinpursuance ofadecision takenbythecompetent authority inaccordance withlaw. 3.Thedecision shallbecommunicated totheminalanguage they understand. Upontheirrequest wherenototherwise mandatory, thedecis~on shall becommunicated totheminwriting and,saveinexceptional circumstances on account ofnational security, thereasons forthedecision likewise stated. The persons concerned shallbeinformed oftheserightsbefore oratthelatestatthe timethedecision isrendered. 4.Except where afinaldecision ispronounced byajudicial authority, the persons concerned shallhavetherighttosubmit thereasonagainst theirexpulsion andtohavetheircasesreviewed bythecompetent authority, unless compelling reasons ofnational security require otherwise. Pending suchreview, theperson concerned shallhavetherighttoseekastayofthedecision ofexpulsion. 5.Ifadecision ofexpulsion thathasalready beenexecuted issubsequently annulled, theperson concerned shallhavetherighttoseekcompensation according tolawandtheearlier decision shallnotbeusedtoprevent thatperson from re-entering theStateconcerned. 6.Incaseofexpulsion, thepersons concerned shallhaveareasonable opportunity before orafterdeparture tosettle anyclaims forwagesandother entitlements duetothemandanypending liabilities. 7.Without prejudice totheexecution ofadecision ofexpulsion, migrant workers ormembers oftheirfamilies whoaresubject tosuchadecision mayseek entryintoaStateotherthantheirStateoforigin. 8. costsof requiredIncaseofexpulsion ofmigrant workers ormembers oftheirfamilies the expulsion shallnotbebornebythem. Thepersons concerned maybe topaytheirowntravelcosts. I..•-14- 9.Expulsion fromtheStateofemployment shallnotinitselfprejudice any rights ofmigrant workers ormembers oftheirfamilies acquired inaccordance with
**Analysis**
The text appears to be a set of articles or regulations related to the treatment of migrant workers and their families. It outlines specific protections and rights for these individuals, including restrictions on imprisonment, confiscation of documents, and collective expulsion. The articles also emphasize the importance of considering humanitarian factors and providing opportunities for review and compensation. Given the focus on the rights and treatment of migrant workers, it seems likely that the category would be related to employment, human rights, or social justice.

**Category**
Employment, Humanitarian aid and relief