Text in Afrikaans / Alhoewel die lokvalstelsel as misdaadbekampingsmetode lank reeds bestaan, is die toepassing daarvan nog altyd kontroversieE!I. Hierdie omstredenheid is die laaste paar jaar op die voorgrond gedryf deur 'n Regskommissie-ondersoek, sowel as deur die aanvaarding van 'n Handves van Menseregte. Ondersoek word ingestel na hierdie omstredenheid deur te kyk na die inhoud en toepassing van die stelsel, sowel as na die rol wat private persona, die polisie en die hot by die stelsel speeL Die gevolgtrekking waartoe gekom word, is dat die omstredenheid van die stelsel te danke is aan die feit dat dit verband hou met pro-aktiewe regshandhawing, wat in wese bestaan uit die gebruik van misleiding ten einde die pleging van 'n misdaad teweeg te bring. Die probleem met pro-aktiewe regshandhawing is dat dit 'n geleentheid skep vir die uitoefening van polisiediskresie wat grootliks sonder beheer geskied, met potensiele wanoptrede aan die kant van regshandhawers en die ondermyning van die publiek se vertroue in die billikheid van die strafregspleging. Ondersoek word gevolglik ingestel na metodes om diskresie-uitoefening by die lokvalstelsel te regverdig, aangesien daar wei ruimte is vir diskresionere magte wat behoorlik begrens, gestruktureer en gekontroleer is. Die vernaamste metodes van beheer oor diskresie­ uitoefening by die lokvalstelsel, naamlik die uitsluiting van getuienis en weerstand in 'n strafgeding, word grondig ondersoek met verwysing na die Engelse-, Amerikaanse- en Kanadese reg. Dit is egter die uitgangspunt van hierdie proefskrif dat wetgewende strukturering van diskresie-uitoefening by die lokvalstelsel die mees effektiewe oplossing bied vir meeste van die problema van die stelsel. Die enigste aanvaarbare basis waarop die lokvalstelsel kan funksioneer, is om deur middel van wetgewing die trefwydte van toelaatbare lokvaltegnieke en die beperkinge waarbinne regshandhawers regsonderdane mag beweeg om misdade te pleeg, te definieer. Daar is dus 'n behoefte aan die kodifisering van standaarde waaraan voldoen moet word voordat enige lokvaloperasie behoort te begin. / Although the system of trapping has long been used as a method of preventing crime, its employment has always been controversial. In the recent past, this controversy has come to the front due to an investigation by the South African Law Commission and the acceptance of a Bill of Rights. This thesis investigates this controversy by looking at the contents and application of the system, as well as the role which private persons, the police and the court play in the system. The conclusion arrived at, is that the controversy surrounding the system is due to the fact that it has to do with pro-active law enforcement, which consists of the use of deception to induce the performance of a criminal act. The problem with pro-active law enforcement is that it creates an opportunity for the exercise of police discretion which is mainly uncontrolled, with potentialmisconduct on the part of law enforcement officials and the subversion of public trust in the reasonableness of the criminal justice system. Consequently, methods by which the exercise of discretion in the system of trapping can be justified are investigated, since there is room for discretionary powers which are properly circumscribed, structured and controlled. The main methods of control over the exercise of discretion in the system of trapping, namely the exclusion of evidence and a defence in a criminal proceeding, are fully investigated with reference to English, American and Canadian law. Having considered the above, the conclusion is advanced that legislative structuring of the exercise of discretion in the system of trapping offers the most effective solution for most of the problems underlying the system. The only acceptable basis on which the system can function, is to define the scope of acceptable trapping techniques and the confines within which law enforcement officials may prevail on someone to commit a crime. This must be done by means of legislation. Accordingly, there is a need for codification of standards which have to be complied with before any trapping operation may commence. / Criminal & Procedural Law / LL.D. (Criminal & Procedural Law)

Summaries in Afrikaans and English / Text in Afrikaans / 'n Kort elementologiese uiteensetting vir strafregtelike aanspreeklikheid word gevolg deur bewysregtelike begrippe wat van toepassing is op vermoedens by toerekeningsvatbaarheid. Die historiese regsposisie asook die ontwikkeling in die huidige Suid-Afrikaanse reg met betrekking tot geestesongesteldes, kinders en persone wat 'n verweer van nie-patologiese ontoerekeningsvatbaarheid insluit, word bespreek. Daar word gekonsentreer op ·die ontwikkeling van 'n algemene verweer van niepatologiese ontoerekeningsvatbaarheid. Die konstitusionele reg, vennoedens en ontoerekeningsvatbaarheid word aan die hand van Suid-Afrikaanse regspraak en die Interim Grondwet bespreek. Daar word na buitelandse reg gekyk ten einde 'n aanbeveling te kan maak wat grondwetlik nie sal indruis op die reg van die individu tot onskuld nie. 'n Algemene verweer van nie-patologiese ontoerekeningvatbaarheid word onderstellll mits dit met omsigtigheid deur die howe benader word. Die arbitrere ouderdomsgrens vir vasstelling van toerekeningsvatbaarheid by kinders word gekritiseer en 'n verhoorbaarheidvasstellingseenheid word aanbeveel. / A short elementological discussion of criminal responsibility is followed by concepts of law of evidence that is applicable to presumptions of accountability. The historical legal position as well as the development in the current South African law and the present legal position with reference to the mentally disturbed children and persons with a defence of non-pathological unaccountability are included and discussed. The constitutional law, presumptions and unaccountablility are discussed with reference to the South African case law and the Interim Constitution. Foreign law is perused so that a recommendation could be made that would not interfere with the rights of the individual to be deemed innocent. A general defence of non-pathological unaccountability is supported if it is treated with the necessary circumspection by the courts. The arbitrary age boundaries for the determination of accountability in children is critized and a unit to determine trialability for pathological and non-pathological accountability is recommended. / Criminal & Procedural Law / LL.M.

The common law right of the accused to be protected against double jeopardy recently acquired constitutional status in South Africa. Although South African courts previously applied this rule in various procedural contexts, there has been very little critical discussion of the values on which the rule is based. Nor have all contexts in which the rule should be applied been recognised. In the light of the new constitutional dispensation, it has become necessary to identify and analyse the values which determine the application of the rule. This thesis addresses the treatment of various aspects of double jeopardy in other constitutionally·grounded jurisdictions. Double jeopardy jurisprudence in the jurisdictions of England, Canada, India, Germany and the federal system of the United States of America is considered on a comparative basis. The historical origin and development of the rule are considered first. This is followed by an assessment of the current application of the rule in the various jurisdictions. The study demonstrates that South African courts have relied largely on outdated principles derived from English common law, rather than applying the rule by focusing on the values that underlie the rule. This approach has become unacceptable in the new constitutional dispensation, inter alia, because a teleological, value·orientated interpretative approach has been adopted by the Constitutional Court. This thesis indicates which of the principles that developed in foreign constitutional double jeopardy jurisprudence may be of value in developing an appropriate body of South African constitutional double jeopardy principles. Proposals are made for future implementation of the rule in various procedural contexts. These suggestions include constitutional interpretation, legislative amendment and re·evaluation of various common law principles of criminal procedure / Criminal & Procedural Law / LL.D. (Criminal & Procedural Law)

Since the pre-requisites for common-purpose liability where there was no prior agreement were laid down in S V Mgedezi 1989 (1) SA 687 (A), the appellate division has moved to resolve related controversial issues. These include the question whether a joiner-in is a perpetrator or accomplice, and whether he should be convicted of murder or attempted murder. It is the question of dissociation which has remained elusive. Courts accept that a person should only be criminally liable when his dissociation from a common purpose takes place after the commencement of execution stage is reached. My submission is that whether one dissociates himself should be a question of fact, to be determined according to the circumstances of each case. Such determination should pay close attention to the doctrine of proximity. Where a person played a minor role, or acted under the influence of a dominant partner, this should be reflected in the punishment imposed. / Criminal & Procedural Law / LL.M. (Criminal & Procedural Law)

Text in Afrikaans / Alhoewel die lokvalstelsel as misdaadbekampingsmetode lank reeds bestaan, is die toepassing daarvan nog altyd kontroversieE!I. Hierdie omstredenheid is die laaste paar jaar op die voorgrond gedryf deur 'n Regskommissie-ondersoek, sowel as deur die aanvaarding van 'n Handves van Menseregte. Ondersoek word ingestel na hierdie omstredenheid deur te kyk na die inhoud en toepassing van die stelsel, sowel as na die rol wat private persona, die polisie en die hot by die stelsel speeL Die gevolgtrekking waartoe gekom word, is dat die omstredenheid van die stelsel te danke is aan die feit dat dit verband hou met pro-aktiewe regshandhawing, wat in wese bestaan uit die gebruik van misleiding ten einde die pleging van 'n misdaad teweeg te bring. Die probleem met pro-aktiewe regshandhawing is dat dit 'n geleentheid skep vir die uitoefening van polisiediskresie wat grootliks sonder beheer geskied, met potensiele wanoptrede aan die kant van regshandhawers en die ondermyning van die publiek se vertroue in die billikheid van die strafregspleging. Ondersoek word gevolglik ingestel na metodes om diskresie-uitoefening by die lokvalstelsel te regverdig, aangesien daar wei ruimte is vir diskresionere magte wat behoorlik begrens, gestruktureer en gekontroleer is. Die vernaamste metodes van beheer oor diskresie­ uitoefening by die lokvalstelsel, naamlik die uitsluiting van getuienis en weerstand in 'n strafgeding, word grondig ondersoek met verwysing na die Engelse-, Amerikaanse- en Kanadese reg. Dit is egter die uitgangspunt van hierdie proefskrif dat wetgewende strukturering van diskresie-uitoefening by die lokvalstelsel die mees effektiewe oplossing bied vir meeste van die problema van die stelsel. Die enigste aanvaarbare basis waarop die lokvalstelsel kan funksioneer, is om deur middel van wetgewing die trefwydte van toelaatbare lokvaltegnieke en die beperkinge waarbinne regshandhawers regsonderdane mag beweeg om misdade te pleeg, te definieer. Daar is dus 'n behoefte aan die kodifisering van standaarde waaraan voldoen moet word voordat enige lokvaloperasie behoort te begin. / Although the system of trapping has long been used as a method of preventing crime, its employment has always been controversial. In the recent past, this controversy has come to the front due to an investigation by the South African Law Commission and the acceptance of a Bill of Rights. This thesis investigates this controversy by looking at the contents and application of the system, as well as the role which private persons, the police and the court play in the system. The conclusion arrived at, is that the controversy surrounding the system is due to the fact that it has to do with pro-active law enforcement, which consists of the use of deception to induce the performance of a criminal act. The problem with pro-active law enforcement is that it creates an opportunity for the exercise of police discretion which is mainly uncontrolled, with potentialmisconduct on the part of law enforcement officials and the subversion of public trust in the reasonableness of the criminal justice system. Consequently, methods by which the exercise of discretion in the system of trapping can be justified are investigated, since there is room for discretionary powers which are properly circumscribed, structured and controlled. The main methods of control over the exercise of discretion in the system of trapping, namely the exclusion of evidence and a defence in a criminal proceeding, are fully investigated with reference to English, American and Canadian law. Having considered the above, the conclusion is advanced that legislative structuring of the exercise of discretion in the system of trapping offers the most effective solution for most of the problems underlying the system. The only acceptable basis on which the system can function, is to define the scope of acceptable trapping techniques and the confines within which law enforcement officials may prevail on someone to commit a crime. This must be done by means of legislation. Accordingly, there is a need for codification of standards which have to be complied with before any trapping operation may commence. / Criminal and Procedural Law / LL.D. (Criminal & Procedural Law)

Summaries in Afrikaans and English / Text in Afrikaans / 'n Kort elementologiese uiteensetting vir strafregtelike aanspreeklikheid word gevolg deur bewysregtelike begrippe wat van toepassing is op vermoedens by toerekeningsvatbaarheid. Die historiese regsposisie asook die ontwikkeling in die huidige Suid-Afrikaanse reg met betrekking tot geestesongesteldes, kinders en persone wat 'n verweer van nie-patologiese ontoerekeningsvatbaarheid insluit, word bespreek. Daar word gekonsentreer op ·die ontwikkeling van 'n algemene verweer van niepatologiese ontoerekeningsvatbaarheid. Die konstitusionele reg, vennoedens en ontoerekeningsvatbaarheid word aan die hand van Suid-Afrikaanse regspraak en die Interim Grondwet bespreek. Daar word na buitelandse reg gekyk ten einde 'n aanbeveling te kan maak wat grondwetlik nie sal indruis op die reg van die individu tot onskuld nie. 'n Algemene verweer van nie-patologiese ontoerekeningvatbaarheid word onderstellll mits dit met omsigtigheid deur die howe benader word. Die arbitrere ouderdomsgrens vir vasstelling van toerekeningsvatbaarheid by kinders word gekritiseer en 'n verhoorbaarheidvasstellingseenheid word aanbeveel. / A short elementological discussion of criminal responsibility is followed by concepts of law of evidence that is applicable to presumptions of accountability. The historical legal position as well as the development in the current South African law and the present legal position with reference to the mentally disturbed children and persons with a defence of non-pathological unaccountability are included and discussed. The constitutional law, presumptions and unaccountablility are discussed with reference to the South African case law and the Interim Constitution. Foreign law is perused so that a recommendation could be made that would not interfere with the rights of the individual to be deemed innocent. A general defence of non-pathological unaccountability is supported if it is treated with the necessary circumspection by the courts. The arbitrary age boundaries for the determination of accountability in children is critized and a unit to determine trialability for pathological and non-pathological accountability is recommended. / Criminal and Procedural Law / LL.M.

The common law right of the accused to be protected against double jeopardy recently acquired constitutional status in South Africa. Although South African courts previously applied this rule in various procedural contexts, there has been very little critical discussion of the values on which the rule is based. Nor have all contexts in which the rule should be applied been recognised. In the light of the new constitutional dispensation, it has become necessary to identify and analyse the values which determine the application of the rule. This thesis addresses the treatment of various aspects of double jeopardy in other constitutionally·grounded jurisdictions. Double jeopardy jurisprudence in the jurisdictions of England, Canada, India, Germany and the federal system of the United States of America is considered on a comparative basis. The historical origin and development of the rule are considered first. This is followed by an assessment of the current application of the rule in the various jurisdictions. The study demonstrates that South African courts have relied largely on outdated principles derived from English common law, rather than applying the rule by focusing on the values that underlie the rule. This approach has become unacceptable in the new constitutional dispensation, inter alia, because a teleological, value·orientated interpretative approach has been adopted by the Constitutional Court. This thesis indicates which of the principles that developed in foreign constitutional double jeopardy jurisprudence may be of value in developing an appropriate body of South African constitutional double jeopardy principles. Proposals are made for future implementation of the rule in various procedural contexts. These suggestions include constitutional interpretation, legislative amendment and re·evaluation of various common law principles of criminal procedure / Criminal and Procedural Law / LL.D. (Criminal & Procedural Law)

Since the pre-requisites for common-purpose liability where there was no prior agreement were laid down in S V Mgedezi 1989 (1) SA 687 (A), the appellate division has moved to resolve related controversial issues. These include the question whether a joiner-in is a perpetrator or accomplice, and whether he should be convicted of murder or attempted murder. It is the question of dissociation which has remained elusive. Courts accept that a person should only be criminally liable when his dissociation from a common purpose takes place after the commencement of execution stage is reached. My submission is that whether one dissociates himself should be a question of fact, to be determined according to the circumstances of each case. Such determination should pay close attention to the doctrine of proximity. Where a person played a minor role, or acted under the influence of a dominant partner, this should be reflected in the punishment imposed. / Criminal and Procedural Law / LL.M. (Criminal & Procedural Law)

Text in Afrikaans / Die verweer van nie-patologiese ontoerekeningsvatbaarheid in die Suid-Afrikaanse strafreg word bespreek. Hierdie verweer is van onlangse oorsprong en verskil van die verwere van ontoerekeningsvatbaarheid as gevolg van jeugdigheid en geestesongesteldheid soos in artikel 78(1) van die Strafproseswet 51 van 1977 uiteengesit word. Die verweer van nie-patologiese ontoerekeningsvatbaarheid dek gevalle waar dit deur faktore soos emosionele spanning veroorsaak is. Hierdie verweer staan ook as die algemene ontoerekeningsvatbaarheidsverweer bekend. In 'n aantal beslissings, soos onder andere, S v Arnold 1985 (3) SA 256 (C); S v Campher 1987 (1) SA 940 (A) en S v Chretien 1981 (1) SA 1097 (A), word die gevolgtrekking gemaak dat die verweer van nie-patologiese ontoerekeningsvatbaarheid wei in die Suid-Afrikaanse strafreg bestaansreg het. Ten einde met 'n verweer van nie-patologiese ontoerekeningsvatbaarheid te slaag, is die blote ipse dixit van die beskuldigde onvoldoende. 'n Behoorlike grondslag vir die verweer moet gele word. Die bewyslas in die geval van 'n verweer van nie-patologiese ontoerekeningsvatbaarheid word bespreek. / The defence of non-pathological criminal incapacity in the South African criminal law is discussed. It is a relatively new defence and should be distinguished from the defences such as youth and mental illness set out in section 78(1) of the Criminal Procedure Act 51 of 1977. This defence covers cases in which criminal capacity is excluded by factors such as intoxication and emotional stress. It is also known as a general defence of criminal incapacity. In a number of cases, inter alia in S v Arnold 1985(3) SA 256 (C); S v Campher 1987 (1) SA 940 (A) and S v Chretien 1981 (1) SA 1 097 (A) the conclusion is reached that the defence, non-pathological criminal incapacity, does have a right of existence in the South African criminal law. In order to successfully raise the defence on non-pathological criminal incapacity, the mere ipse dixit of the accused is insufficient. A proper foundation for the defence must be laid. The onus of proof is discussed. / Criminal & Procedural Law / LL. M.

Text in Afrikaans / Die verweer van nie-patologiese ontoerekeningsvatbaarheid in die Suid-Afrikaanse strafreg word bespreek. Hierdie verweer is van onlangse oorsprong en verskil van die verwere van ontoerekeningsvatbaarheid as gevolg van jeugdigheid en geestesongesteldheid soos in artikel 78(1) van die Strafproseswet 51 van 1977 uiteengesit word. Die verweer van nie-patologiese ontoerekeningsvatbaarheid dek gevalle waar dit deur faktore soos emosionele spanning veroorsaak is. Hierdie verweer staan ook as die algemene ontoerekeningsvatbaarheidsverweer bekend. In 'n aantal beslissings, soos onder andere, S v Arnold 1985 (3) SA 256 (C); S v Campher 1987 (1) SA 940 (A) en S v Chretien 1981 (1) SA 1097 (A), word die gevolgtrekking gemaak dat die verweer van nie-patologiese ontoerekeningsvatbaarheid wei in die Suid-Afrikaanse strafreg bestaansreg het. Ten einde met 'n verweer van nie-patologiese ontoerekeningsvatbaarheid te slaag, is die blote ipse dixit van die beskuldigde onvoldoende. 'n Behoorlike grondslag vir die verweer moet gele word. Die bewyslas in die geval van 'n verweer van nie-patologiese ontoerekeningsvatbaarheid word bespreek. / The defence of non-pathological criminal incapacity in the South African criminal law is discussed. It is a relatively new defence and should be distinguished from the defences such as youth and mental illness set out in section 78(1) of the Criminal Procedure Act 51 of 1977. This defence covers cases in which criminal capacity is excluded by factors such as intoxication and emotional stress. It is also known as a general defence of criminal incapacity. In a number of cases, inter alia in S v Arnold 1985(3) SA 256 (C); S v Campher 1987 (1) SA 940 (A) and S v Chretien 1981 (1) SA 1 097 (A) the conclusion is reached that the defence, non-pathological criminal incapacity, does have a right of existence in the South African criminal law. In order to successfully raise the defence on non-pathological criminal incapacity, the mere ipse dixit of the accused is insufficient. A proper foundation for the defence must be laid. The onus of proof is discussed. / Criminal and Procedural Law / LL. M.